{"id":6499,"date":"2024-03-20T19:01:01","date_gmt":"2024-03-20T11:01:01","guid":{"rendered":""},"modified":"2024-03-20T19:01:01","modified_gmt":"2024-03-20T11:01:01","slug":"Oracle\u57fa\u7840","status":"publish","type":"post","link":"https:\/\/mushiming.com\/6499.html","title":{"rendered":"Oracle\u57fa\u7840"},"content":{"rendered":"<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display: none;\"> \n <path stroke-linecap=\"round\" d=\"M5,0 0,2.5 5,5z\" id=\"raphael-marker-block\" style=\"-webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"><\/path> \n<\/svg> <\/p>\n<h3>Oracle\u57fa\u7840<\/h3>\n<h4>\u5355\u884c\u51fd\u6570\uff1a<\/h4>\n<p>\u4f5c\u7528\u4e8e\u4e00\u884c\uff0c\u8fd4\u56de\u4e00\u4e2a\u503c<\/p>\n<ul>\n<li>\u5b57\u7b26\u51fd\u6570<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token keyword\">select<\/span> upper<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"yse\"<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">from<\/span> dual<span class=\"token punctuation\">;<\/span><span class=\"token comment\">--\u7ed3\u679c\uff1aYES<\/span>\n<span class=\"token keyword\">select<\/span> lower<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"YES\"<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">from<\/span> dual<span class=\"token punctuation\">;<\/span><span class=\"token comment\">--\u7ed3\u679c\uff1ayse<\/span>\n<\/code><\/pre>\n<ul>\n<li>\u6570\u503c\u51fd\u6570<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token keyword\">select<\/span> <span class=\"token function\">round<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">26.18<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">from<\/span> dual<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u56db\u820d\u4e94\u5165\uff0c\u540e\u9762\u53c2\u6570\u8868\u793a\u4fdd\u7559\u7684\u5c0f\u6570\uff0c \u6574\u6570==\u5f80\u540e\u4fdd\u7559\uff0c\u8d1f\u6570==\u5f80\u524d\u4fdd\u7559<\/span>\n<span class=\"token keyword\">select<\/span> trunc<span class=\"token punctuation\">(<\/span><span class=\"token number\">56.16<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">from<\/span> dual<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u76f4\u63a5\u622a\u53d6\uff0c\u4e0d\u518d\u770b\u540e\u9762\u4f4d\u6570\u662f\u5426\u5927\u4e8e5<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token function\">mod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">from<\/span> dual<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u6c42\u6a21(\u53d6\u4f59) \u7ed3\u679c\uff1a1<\/span>\n<\/code><\/pre>\n<ul>\n<li>\u65e5\u671f\u51fd\u6570<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u67e5\u8be2\u51faemp\u8868\u4e2d\u6240\u6709\u5458\u5de5\u5165\u804c\u8ddd\u79bb\u73b0\u5728\u51e0\u5929<\/span>\n<span class=\"token keyword\">select<\/span> sysdate<span class=\"token operator\">-<\/span>e<span class=\"token punctuation\">.<\/span>hiredate \n<span class=\"token keyword\">from<\/span> emp e<span class=\"token punctuation\">;<\/span><span class=\"token comment\">--sysdate==\u5f53\u524d\u7cfb\u7edf\u65f6\u95f4<\/span>\n\n<span class=\"token comment\">--\u7b97\u51fa\u660e\u5929\u6b64\u523b<\/span>\n<span class=\"token keyword\">select<\/span> sysdate<span class=\"token operator\">+<\/span><span class=\"token number\">1<\/span> \n<span class=\"token keyword\">from<\/span> dual<span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u67e5\u8be2\u51faemp\u8868\u4e2d\u6240\u6709\u5458\u5de5\u5165\u804c\u8ddd\u79bb\u73b0\u5728\u51e0\u6708<\/span>\n<span class=\"token keyword\">select<\/span> months<span class=\"token operator\">-<\/span><span class=\"token operator\">between<\/span><span class=\"token punctuation\">(<\/span>sysdate<span class=\"token punctuation\">,<\/span>e<span class=\"token punctuation\">.<\/span>hiredate<span class=\"token punctuation\">)<\/span> \n<span class=\"token keyword\">from<\/span> emp e<span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u67e5\u8be2\u51faemp\u8868\u4e2d\u6240\u6709\u5458\u5de5\u5165\u804c\u8ddd\u79bb\u73b0\u5728\u51e0\u5e74<\/span>\n<span class=\"token keyword\">select<\/span> months<span class=\"token operator\">-<\/span><span class=\"token operator\">between<\/span><span class=\"token punctuation\">(<\/span>sysdate<span class=\"token punctuation\">,<\/span>e<span class=\"token punctuation\">.<\/span>hiredate<span class=\"token punctuation\">)<\/span><span class=\"token operator\">\/<\/span><span class=\"token number\">12<\/span> \n<span class=\"token keyword\">from<\/span> emp e<span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u67e5\u8be2\u51faemp\u8868\u4e2d\u6240\u6709\u5458\u5de5\u5165\u804c\u8ddd\u79bb\u73b0\u5728\u51e0\u5468<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token function\">round<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>sysdate<span class=\"token operator\">-<\/span>e<span class=\"token punctuation\">.<\/span>hiredate<span class=\"token punctuation\">)<\/span><span class=\"token operator\">\/<\/span><span class=\"token number\">7<\/span><span class=\"token punctuation\">)<\/span> \n<span class=\"token keyword\">from<\/span> emp e<span class=\"token punctuation\">;<\/span><span class=\"token function\">round<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span>\u56db\u820d\u4e94\u5165\u51fd\u6570\n<\/code><\/pre>\n<ul>\n<li>\u8f6c\u6362\u51fd\u6570<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u65f6\u95f4\u8f6c\u5b57\u7b26\u4e32\u683c\u5f0f<\/span>\n<span class=\"token keyword\">select<\/span> to_char<span class=\"token punctuation\">(<\/span>sysdate<span class=\"token punctuation\">,<\/span><span class=\"token string\">'fm yyyy-mm-dd hh24:mi:ss'<\/span><span class=\"token punctuation\">)<\/span> \n<span class=\"token keyword\">from<\/span> dual<span class=\"token punctuation\">;<\/span>  fm<span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span>\u65f6\u5206\u79d2\u524d\u4e0d\u52a0<span class=\"token number\">0<\/span> <span class=\"token number\">24<\/span><span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span><span class=\"token number\">24<\/span>\u5c0f\u65f6\u5236\n\n<span class=\"token comment\">--\u5b57\u7b26\u4e32\u8f6c\u65e5\u671f<\/span>\n<span class=\"token keyword\">select<\/span> to_char<span class=\"token punctuation\">(<\/span><span class=\"token string\">'2020-7-13 22:41:21'<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">'fm yyyy-mm-dd hh24:mi:ss'<\/span><span class=\"token punctuation\">)<\/span> \n<span class=\"token keyword\">from<\/span> dual<span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<ul>\n<li>\u901a\u7528\u51fd\u6570<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">-- \u7b97\u51faemp\u8868\u4e2d\u6240\u6709\u5458\u5de5\u7684\u5e74\u85aa<\/span>\n<span class=\"token comment\">--sal=\u6708\u85aa\u5b57\u6bb5 e=emp\u7684\u522b\u540d comm=\u4e00\u5e74\u7684\u5956\u91d1<\/span>\n<span class=\"token keyword\">select<\/span> e<span class=\"token punctuation\">.<\/span>sal<span class=\"token operator\">*<\/span><span class=\"token number\">12<\/span><span class=\"token operator\">+<\/span>e<span class=\"token punctuation\">.<\/span>comm\n<span class=\"token keyword\">from<\/span> emp e<span class=\"token punctuation\">;<\/span> \n\n<span class=\"token comment\">--\u5956\u91d1\u91cc\u9762\u6709null\u65f6\uff0cnull\u503c\u548c\u4efb\u610f\u6570\u5b57\u505a\u7b97\u6570\u8fd0\u7b97\uff0c\u7ed3\u679c\u90fd\u662fnull<\/span>\n<span class=\"token comment\">--\u89e3\u51b3\uff1anvl()\u51fd\u6570:\u5982\u679c\u503c\u4e3anull\u75280\u4ee3\u66ff<\/span>\n<span class=\"token keyword\">select<\/span> e<span class=\"token punctuation\">.<\/span>sal<span class=\"token operator\">*<\/span><span class=\"token number\">12<\/span><span class=\"token operator\">+<\/span>nvl<span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">.<\/span>comm<span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>\n<span class=\"token keyword\">from<\/span> emp e<span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>\u591a\u884c\u51fd\u6570<\/h4>\n<p>\u4f5c\u7528\u4e8e\u591a\u884c\uff0c\u8fd4\u56de\u4e00\u4e2a\u503c<\/p>\n<table>\n<thead>\n<tr>\n<th align=\"left\">\u65b9\u6cd5<\/th>\n<th align=\"left\"><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\">count(1)<\/td>\n<td align=\"left\">\u67e5\u8be2\u603b\u6570\u91cf\uff0c<br \/>1= * \u8868\u793a\u4e3b\u952e\u5373\u6240\u6709<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">sum(\u2018\u5b57\u6bb5\u2019)<\/td>\n<td align=\"left\">\u6c42\u548c<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">max(\u2018\u5b57\u6bb5\u2019)<\/td>\n<td align=\"left\">\u6700\u5927\u503c<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">min(\u2018\u5b57\u6bb5\u2019)<\/td>\n<td align=\"left\">\u6700\u5c0f\u503c<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">avg(\u2018\u5b57\u6bb5\u2019)<\/td>\n<td align=\"left\">\u5e73\u5747\u503c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>\u5206\u7ec4\u67e5\u8be2<\/h4>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">-- \u67e5\u8be2\u51fa\u6bcf\u4e2a\u90e8\u95e8\u7684\u5e73\u5747\u5de5\u8d44<\/span>\n<span class=\"token keyword\">select<\/span> e<span class=\"token punctuation\">.<\/span>deptno<span class=\"token punctuation\">,<\/span> <span class=\"token function\">avg<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">.<\/span>sal<span class=\"token punctuation\">)<\/span> <span class=\"token comment\">--\u5982\u679c\u52a0\u8fd9\u6bb5\uff1a,e.ename \u5219\u62a5\u9519<\/span>\n<span class=\"token keyword\">from<\/span> emp e \n<span class=\"token keyword\">group<\/span> <span class=\"token keyword\">by<\/span> e<span class=\"token punctuation\">.<\/span>deptno\n<\/code><\/pre>\n<ul>\n<li>\u5206\u7ec4\u67e5\u8be2\u4e2d\uff0c\u51fa\u73b0\u5728group by\u540e\u9762\u7684\u539f\u59cb\u5217\uff0c\u624d\u80fd\u51fa\u73b0\u5728select\u540e\u9762<\/li>\n<li>\u6ca1\u6709\u51fa\u73b0\u5728group by\u540e\u7684\u5217\uff0c\u60f3\u5728select\u540e\u9762\u51fa\u73b0\uff0c\u5fc5\u987b\u52a0\u4e0a\u805a\u5408\u51fd\u6570<\/li>\n<li>\u805a\u5408\u51fd\u6570\u6709\u4e00\u4e2a\u7279\u6027\uff0c\u53ef\u4ee5\u628a\u591a\u884c\u8bb0\u5f55\u53d8\u6210\u4e00\u4e2a\u503c<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u67e5\u8be2\u51fa\u5e73\u5747\u5de5\u8d44\u9ad8\u4e8e2000\u7684\u90e8\u95e8\u4fe1\u606f<\/span>\n<span class=\"token keyword\">select<\/span> e<span class=\"token punctuation\">.<\/span>deptno<span class=\"token punctuation\">,<\/span> <span class=\"token function\">avg<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">.<\/span>sal<span class=\"token punctuation\">)<\/span> asal  <span class=\"token comment\">--\u5982\u679c\u52a0\u8fd9\u6bb5\u53cahaveing\u540e\u9762\u7528asal\u6765\u5224\u65ad\u5219\u62a5\u9519<\/span>\n<span class=\"token keyword\">from<\/span> emp e\n<span class=\"token keyword\">group<\/span> <span class=\"token keyword\">by<\/span> e<span class=\"token punctuation\">.<\/span>deptno\n<span class=\"token keyword\">having<\/span> <span class=\"token function\">avg<\/span><span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">.<\/span>sal<span class=\"token punctuation\">)<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token number\">2000<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<ul>\n<li>\u6240\u6709\u6761\u4ef6\u90fd\u4e0d\u80fd\u4f7f\u7528\u522b\u540d\u6765\u5224\u65ad\u3002<\/li>\n<\/ul>\n<blockquote>\n<p>\u5982\uff1aselect ename,sal s from emp where s&gt;1500; --\u4f1a\u62a5\u9519\uff0cs\u522b\u540d\u4e0d\u80fd\u7528\u6765\u5224\u65ad<\/p>\n<\/blockquote>\n<p><strong>where\u548chaving\u7684\u533a\u522b<\/strong><\/p>\n<ul>\n<li>where\u662f\u8fc7\u6ee4\u5206\u7ec4\u524d\u7684\u6570\u636e\uff0chaving\u662f\u8fc7\u6ee4\u540e\u7684\u6570\u636e<\/li>\n<li>\u8868\u73b0\u5f62\u5f0f\uff1awhere \u5fc5\u987b\u662f\u5728group by\u4e4b\u524d\uff0chaving\u662f\u5728group by\u4e4b\u540e<\/li>\n<\/ul>\n<h4>\u5b50\u67e5\u8be2<\/h4>\n<p>\u5b50\u67e5\u8be2\u8fd4\u56de\u4e00\u4e2a\u503c<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">-- \u67e5\u8be2\u5de5\u8d44\u548c\u5458\u5de5SCOTT\u4e00\u6837\u7684\u5458\u5de5\u4fe1\u606f<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> \n<span class=\"token keyword\">from<\/span> emp \n<span class=\"token keyword\">where<\/span> sal <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token comment\">-- \u7531\u4e8eename\u5b57\u6bb5\u4e0d\u662f\u4e3b\u952e\uff0c\u59d3\u540d\u4e3a'SCOTT'\u7684\u6570\u636e\u53ef\u80fd\u4e0d\u6b62\u4e00\u6761\uff0c\u6240\u4ee5\u4e0a\u9762\u7528\u7b49\u53f7\u6709\u65f6\u4f1a\u6709\u95ee\u9898 \u89e3\u51b3\uff1a\u7528in\u4ee3\u66ff\u7b49\u53f7\u5373\u53ef<\/span>\n    <span class=\"token keyword\">select<\/span> sal \n    <span class=\"token keyword\">from<\/span> emp \n    <span class=\"token keyword\">where<\/span> ename <span class=\"token operator\">=<\/span> <span class=\"token string\">'SCOTT'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">)<\/span>\n<\/code><\/pre>\n<p>\u5b50\u67e5\u8be2\u8fd4\u56de\u4e00\u4e2a\u96c6\u5408<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-mysql\">-- \u67e5\u8be2\u51fa\u5de5\u8d44\u548c10\u53f7\u90e8\u95e8\u4efb\u610f\u5458\u5de5\u4e00\u6837\u7684\u5458\u5de5\u4fe1\u606f\nselect * \nfrom emp \nwhere sal in (\n    select sal \n    from emp \n    where deptno = 10;\n) -- deptno==\u90e8\u95e8\u7f16\u53f7\n<\/code><\/pre>\n<p>\u5b50\u67e5\u8be2\u8fd4\u56de\u4e00\u5f20\u8868<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">-- \u67e5\u8be2\u51fa\u6bcf\u4e2a\u90e8\u95e8\u6700\u4f4e\u5de5\u8d44\uff0c\u548c\u6700\u4f4e\u5de5\u8d44\u5458\u5de5\u59d3\u540d\uff0c\u548c\u8be5\u5458\u5de5\u6240\u5728\u90e8\u95e8\u540d\u79f0<\/span>\n<span class=\"token comment\">-- \u4e09\u8868\u8054\u67e5\uff0c\u5f97\u5230\u6700\u7ec8\u7ed3\u679c<\/span>\n<span class=\"token keyword\">select<\/span> t<span class=\"token punctuation\">.<\/span>deptno <span class=\"token punctuation\">,<\/span>t<span class=\"token punctuation\">.<\/span>msal<span class=\"token punctuation\">,<\/span>e<span class=\"token punctuation\">.<\/span>ename<span class=\"token punctuation\">,<\/span>d<span class=\"token punctuation\">.<\/span>dname\n<span class=\"token keyword\">from<\/span><span class=\"token punctuation\">(<\/span>\n    <span class=\"token keyword\">select<\/span> deptno <span class=\"token function\">min<\/span><span class=\"token punctuation\">(<\/span>sal<span class=\"token punctuation\">)<\/span> msal <span class=\"token comment\">--1-\u5148\u67e5\u8be2\u6bcf\u4e2a\u90e8\u95e8\u6700\u4f4e\u5de5\u8d44 msal==\u6700\u5c0f\u5de5\u8d44\u5b57\u6bb5\u522b\u540d<\/span>\n    <span class=\"token keyword\">from<\/span> emp\n    <span class=\"token keyword\">group<\/span> <span class=\"token keyword\">by<\/span> deptno\n<span class=\"token punctuation\">)<\/span> t<span class=\"token punctuation\">,<\/span>emp e<span class=\"token punctuation\">,<\/span>dept d\n<span class=\"token keyword\">where<\/span> t<span class=\"token punctuation\">.<\/span>deptno <span class=\"token operator\">=<\/span> e<span class=\"token punctuation\">.<\/span>deptno <span class=\"token operator\">and<\/span> t<span class=\"token punctuation\">.<\/span>msal <span class=\"token operator\">=<\/span> e<span class=\"token punctuation\">.<\/span>sal <span class=\"token operator\">and<\/span> e<span class=\"token punctuation\">.<\/span>deptno <span class=\"token operator\">=<\/span> d<span class=\"token punctuation\">.<\/span>deptno<span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>oracle\u5206\u9875<\/h4>\n<p>rownum\u884c\u53f7\uff1a\u5f53\u6211\u4eec\u505aselect\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u6bcf\u67e5\u8be2\u51fa\u4e00\u884c\u8bb0\u5f55\uff0c\u5c31\u4f1a\u5728\u8be5\u884c\u4e0a\u52a0\u4e00\u4e2a\u884c\u53f7\uff0c\u884c\u53f7\u4ece1\u5f00\u59cb\uff0c\u4f9d\u6b21\u9012\u589e\uff0c\u4e0d\u80fd\u8df3\u7740\u8d70<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">-- \u4f8b\uff1aemp\u8868\u5de5\u8d44\u5012\u53d9\u6392\u5e8f\u540e\uff0c\u6bcf\u9875\u4e94\u6761\u8bb0\u5f55\uff0c\u67e5\u8be2\u7b2c\u4e8c\u9875<\/span>\n<span class=\"token comment\">-- \u7b2c\u4e8c\u9875\u5373\uff1a\u884c\u53f7\u4e3a6-10<\/span>\n\n<span class=\"token comment\">-- \u8bf4\u660e\uff1a\u6392\u5e8f\u64cd\u4f5c\u4f1a\u5f71\u54cdrownum\u7684\u987a\u5e8f \u5982\uff1a<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> \n<span class=\"token keyword\">from<\/span> emp e \n<span class=\"token keyword\">where<\/span> rownum <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">4<\/span> \n<span class=\"token keyword\">order<\/span> <span class=\"token keyword\">by<\/span> e<span class=\"token punctuation\">.<\/span>sal <span class=\"token keyword\">desc<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u67e5\u8be2\u6392\u5e8f\u540e\u7684\u524d\u4e09\u6761<\/span>\n\n\u89e3\u51b3\uff1a\t\n<span class=\"token keyword\">select<\/span> rownum<span class=\"token punctuation\">,<\/span>t<span class=\"token punctuation\">.<\/span><span class=\"token operator\">*<\/span> \n<span class=\"token keyword\">from<\/span><span class=\"token punctuation\">(<\/span>\n    <span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> \n\t<span class=\"token keyword\">from<\/span> emp e \n\t<span class=\"token keyword\">order<\/span> <span class=\"token keyword\">by<\/span> e<span class=\"token punctuation\">.<\/span>sal <span class=\"token keyword\">desc<\/span>\n<span class=\"token punctuation\">)<\/span> t \n<span class=\"token keyword\">where<\/span> rownum<span class=\"token operator\">&lt;<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">-- \u5148\u6392\u5e8f\u518d\u52a0\u884c\u53f7<\/span>\n\n\n<span class=\"token comment\">-- \u8bf4\u660e\uff1arownum\u884c\u53f7\u4e0d\u80fd\u4f7f\u7528\u5927\u4e8e&gt;<\/span>\n<span class=\"token keyword\">select<\/span> rownum<span class=\"token punctuation\">,<\/span>e<span class=\"token punctuation\">.<\/span><span class=\"token operator\">*<\/span> \n<span class=\"token keyword\">from<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> \n\t <span class=\"token keyword\">from<\/span> emp e \n\t <span class=\"token keyword\">order<\/span> <span class=\"token keyword\">by<\/span> e<span class=\"token punctuation\">.<\/span>sal <span class=\"token keyword\">desc<\/span>\n<span class=\"token punctuation\">)<\/span> \n<span class=\"token keyword\">where<\/span> rownum<span class=\"token operator\">&lt;<\/span><span class=\"token number\">11<\/span> <span class=\"token operator\">and<\/span> rownum<span class=\"token operator\">&gt;<\/span><span class=\"token number\">5<\/span> <span class=\"token comment\">-- \u67e5\u8be2\u65e0\u6570\u636e<\/span>\n\t\t\n\n<span class=\"token comment\">-- \u6b63\u786e\u5206\u9875\u67e5\u8be2\u8bed\u53e5\uff1a<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span>\n<span class=\"token keyword\">from<\/span><span class=\"token punctuation\">(<\/span>\n\t<span class=\"token keyword\">select<\/span> rownum rn<span class=\"token punctuation\">,<\/span>tt<span class=\"token punctuation\">.<\/span><span class=\"token operator\">*<\/span>\n\t<span class=\"token keyword\">from<\/span><span class=\"token punctuation\">(<\/span>\n\t\t<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span>\n\t\t<span class=\"token keyword\">from<\/span> emp\n\t\t<span class=\"token keyword\">order<\/span> <span class=\"token keyword\">by<\/span> sal <span class=\"token keyword\">desc<\/span>\n    <span class=\"token punctuation\">)<\/span> tt\n\t<span class=\"token keyword\">order<\/span> <span class=\"token keyword\">by<\/span> e<span class=\"token punctuation\">.<\/span>sal <span class=\"token keyword\">desc<\/span>\n\t<span class=\"token keyword\">where<\/span> rownum<span class=\"token operator\">&lt;<\/span><span class=\"token number\">11<\/span>\n<span class=\"token punctuation\">)<\/span>\n<span class=\"token keyword\">where<\/span> rn<span class=\"token operator\">&gt;<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>\u89c6\u56fe<\/h4>\n<p>\u6982\u5ff5\uff1a\u89c6\u56fe\u5c31\u662f\u63d0\u4f9b\u4e00\u4e2a\u67e5\u8be2\u7684\u7a97\u53e3\uff0c\u6240\u6709\u6570\u636e\u6765\u81ea\u4e8e\u539f\u8868<\/p>\n<p>\u89c6\u56fe\u7684\u4f5c\u7528\uff1a<\/p>\n<ul>\n<li>\u89c6\u56fe\u53ef\u4ee5\u5c4f\u853d\u6389\u4e00\u4e9b\u654f\u611f\u5b57\u6bb5\u3002<\/li>\n<li>\u4fdd\u8bc1\u603b\u90e8\u548c\u5206\u90e8\u6570\u636e\u53ca\u65f6\u7edf\u4e00\u3002<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u67e5\u8be2\u8bed\u53e5\u521b\u5efa\u8868<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token keyword\">table<\/span> emp \n<span class=\"token keyword\">as<\/span> \n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> \n<span class=\"token keyword\">from<\/span> scott<span class=\"token punctuation\">.<\/span>emp<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--scott==\u7528\u6237\u540d<\/span>\n\n<span class=\"token comment\">-- \u67e5\u8be2<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> \n<span class=\"token keyword\">from<\/span> emp<span class=\"token punctuation\">;<\/span>\n\n\n<span class=\"token comment\">--\u521b\u5efa\u89c6\u56fe[\u5fc5\u987b\u6709dba\u6743\u9650]<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token keyword\">view<\/span> v_emp \n<span class=\"token keyword\">as<\/span> \n<span class=\"token keyword\">select<\/span> ename<span class=\"token punctuation\">,<\/span>job \n<span class=\"token keyword\">from<\/span> emp<span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u67e5\u8be2\u89c6\u56fe<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">from<\/span> v_emp<span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u4fee\u6539\u89c6\u56fe(\u4e0d\u63a8\u8350)<\/span>\n<span class=\"token keyword\">update<\/span> v_emp \n<span class=\"token keyword\">set<\/span> job<span class=\"token operator\">=<\/span><span class=\"token string\">'CLERK'<\/span>\n<span class=\"token keyword\">where<\/span> ename<span class=\"token operator\">=<\/span><span class=\"token string\">'ALLEN'<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">--\u539f\u8868\u6570\u636e\u4e5f\u88ab\u4fee\u6539<\/span>\n<span class=\"token keyword\">commit<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u521b\u5efa\u53ea\u8bfb\u89c6\u56fe<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token keyword\">view<\/span> v_emp1 \n<span class=\"token keyword\">as<\/span> \n<span class=\"token keyword\">select<\/span> ename<span class=\"token punctuation\">,<\/span>job \n<span class=\"token keyword\">from<\/span> emp <span class=\"token keyword\">with<\/span> <span class=\"token keyword\">read<\/span> only<span class=\"token punctuation\">;<\/span><span class=\"token comment\">--\u65e0\u6cd5\u4fee\u6539<\/span>\n<\/code><\/pre>\n<h4>\u7d22\u5f15<\/h4>\n<p>\u6982\u5ff5\uff1a\u7d22\u5f15\u5c31\u662f\u5728\u8868\u7684\u5217\u4e0a\u6784\u5efa\u4e00\u4e2a\u4e8c\u53c9\u6811\u3002\u8fbe\u5230\u5927\u5e45\u5ea6\u63d0\u9ad8\u67e5\u8be2\u6548\u7387\u7684\u76ee\u7684\uff0c\u4f46\u662f\u7d22\u5f15\u4f1a\u5f71\u54cd\u589e\u5220\u6539\u7684\u6548\u7387<\/p>\n<p><strong>\u5355\u5217\u7d22\u5f15<\/strong><\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">-- \u521b\u5efa\u5355\u5217\u7d22\u5f15<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token keyword\">index<\/span> idx_ename <span class=\"token keyword\">on<\/span> emp<span class=\"token punctuation\">(<\/span>ename<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">-- \u89e6\u53d1\u89c4\u5219\uff1a\u6761\u4ef6\u5fc5\u987b\u662f\u7d22\u5f15\u5217\u4e2d\u7684\u539f\u59cb\u503c\u3002<\/span>\n<span class=\"token comment\">-- \u5355\u884c\u51fd\u6570\uff0c\u6a21\u7cca\u67e5\u8be2 \u90fd\u4f1a\u5f71\u54cd\u7d22\u5f15\u7684\u89e6\u53d1<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">from<\/span> emp <span class=\"token keyword\">where<\/span> ename<span class=\"token operator\">=<\/span><span class=\"token string\">'SCOTT'<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<p><strong>\u590d\u5408\u7d22\u5f15<\/strong><\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u521b\u5efa\u590d\u5408\u7d22\u5f15<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token keyword\">index<\/span> idx_enamejob <span class=\"token keyword\">on<\/span> emp<span class=\"token punctuation\">(<\/span>ename<span class=\"token punctuation\">,<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t\n<span class=\"token comment\">--\u89e6\u53d1\u89c4\u5219\uff1a\u590d\u5408\u7d22\u5f15\u4e2d\u7b2c\u4e00\u5217\u4e3a\u4f18\u5148\u68c0\u7d22\u5217\u3002\u5982\u679c\u8981\u89e6\u53d1\u590d\u5408\u7d22\u5f15\uff0c\u5fc5\u987b\u5305\u542b\u6709\u4f18\u5148\u68c0\u7d22\u5217\u4e2d\u7684\u539f\u59cb\u503c<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">from<\/span> emp <span class=\"token keyword\">where<\/span> ename<span class=\"token operator\">=<\/span><span class=\"token string\">'SCOTT'<\/span> <span class=\"token operator\">and<\/span> job<span class=\"token operator\">=<\/span><span class=\"token string\">'xxx'<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u4f1a\u89e6\u53d1\u590d\u5408\u7d22\u5f15\uff0c\u6709\u4f18\u5148\u68c0\u7d22\u5217ename='SCOTT'<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">from<\/span> emp <span class=\"token keyword\">where<\/span> ename<span class=\"token operator\">=<\/span><span class=\"token string\">'SCOTT'<\/span> <span class=\"token operator\">or<\/span> job<span class=\"token operator\">=<\/span><span class=\"token string\">'xxx'<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">--\u4e0d\u89e6\u53d1\u7d22\u5f15\u3002\u76f8\u5f53\u4e8e\u4e24\u4e2a\u8bed\u53e5\uff0c\u4e00\u4e2a\u89e6\u53d1\u4e00\u4e2a\u4e0d\u89e6\u53d1\u5373\u4e0d\u89e6\u53d1\u3002<\/span>\n<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">from<\/span> emp <span class=\"token keyword\">where<\/span> ename<span class=\"token operator\">=<\/span><span class=\"token string\">'SCOTT'<\/span><span class=\"token punctuation\">;<\/span> \t\t\t\t <span class=\"token comment\">--\u89e6\u53d1\u7684\u662f\u5355\u5217\u7d22\u5f15\uff0c\u65e2\u6709\u5355\u5217\u4e5f\u6709\u590d\u5408\uff0c\u4f46\u67e5\u8be2\u4e3a\u5355\u5217<\/span>\n<\/code><\/pre>\n<h4>pl\/sql\u7f16\u7a0b\u8bed\u8a00<\/h4>\n<ul>\n<li>\u662f\u5bf9sql\u8bed\u8a00\u7684\u6269\u5c55\uff0c\u662fsql\u8bed\u8a00\u5177\u6709\u8fc7\u7a0b\u5316\u7f16\u7a0b\u7684\u7279\u6027\u3002<\/li>\n<li>\u6bd4\u4e00\u822c\u7684\u8fc7\u7a0b\u5316\u7f16\u7a0b\u8bed\u8a00\u66f4\u7075\u6d3b\u9ad8\u6548\u3002<\/li>\n<li>\u4e3b\u8981\u7528\u6765\u7f16\u5199\u5b58\u50a8\u8fc7\u7a0b\u548c\u5b58\u50a8\u51fd\u6570\u7b49\u3002<\/li>\n<\/ul>\n<p><strong>\u58f0\u660e\u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token keyword\">declare<\/span>\n\t<span class=\"token comment\">--\u5b9a\u4e49\u4e00\u4e2a\u6570\u5b57\u53d8\u91cfi\u8d4b\u503c\u4e3a10<\/span>\n\ti number<span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span> :<span class=\"token operator\">=<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> \n\t\n\t<span class=\"token comment\">--\u5b9a\u4e49\u5b57\u7b26\u4e32\u53d8\u91cfs\u8d4b\u503c\u4e3a\u5c0f\u660e<\/span>\n\ts varchar2<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span> :<span class=\"token operator\">=<\/span> <span class=\"token string\">'\u5c0f\u660e'<\/span><span class=\"token punctuation\">;<\/span> \n\t\n\t<span class=\"token comment\">--\u5f15\u7528\u578b\u53d8\u91cf\uff0c\u5b9a\u4e49\u4e00\u4e2aemp\u8868\u4e2dename\u5b57\u6bb5\u7c7b\u578b\u7684\u53d8\u91cfena<\/span>\n\tena emp<span class=\"token punctuation\">.<\/span>ename<span class=\"token operator\">%<\/span><span class=\"token keyword\">type<\/span><span class=\"token punctuation\">;<\/span> \n\t\n\t<span class=\"token comment\">--\u8bb0\u5f55\u578b\u53d8\u91cf\uff0c\u5b9a\u4e49\u4e00\u4e2a\u5b58emp\u8868\u4e2d\u4e00\u884c\u8bb0\u5f55\u7684\u53d8\u91cf\uff0c\u76f8\u5f53\u4e8e\u4e00\u4e2a\u5bf9\u8c61<\/span>\n\temprow emp<span class=\"token operator\">%<\/span>rowtype<span class=\"token punctuation\">;<\/span> \n<span class=\"token keyword\">begin<\/span>\n\t\n\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u8f93\u51fa\u53d8\u91cfi \u7ed3\u679c\uff1a10<\/span>\n\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u8f93\u51fa\u53d8\u91cfs \u7ed3\u679c\uff1a\u5c0f\u660e<\/span>\n\t\n\t<span class=\"token keyword\">select<\/span> ename <span class=\"token keyword\">into<\/span> ena \n\t<span class=\"token keyword\">from<\/span> emp \n\t<span class=\"token keyword\">where<\/span> empno<span class=\"token operator\">=<\/span><span class=\"token number\">7788<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u4eceemp\u8868\u4e2d\u67e5\u8be2\u4e00\u4e2a\u59d3\u540d\u8d4b\u503c\u7ed9\u53d8\u91cfena<\/span>\n\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>ena<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u8f93\u51fa\u53d8\u91cfena<\/span>\n\t\n\t<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">into<\/span> emprow \n\t<span class=\"token keyword\">from<\/span> emp \n\t<span class=\"token keyword\">where<\/span> empno<span class=\"token operator\">=<\/span><span class=\"token number\">7788<\/span><span class=\"token punctuation\">;<\/span>\n\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>emprow<span class=\"token punctuation\">.<\/span>ename <span class=\"token operator\">||<\/span><span class=\"token string\">'\u7684\u5de5\u4f5c\u4e3a\uff1a'<\/span><span class=\"token operator\">||<\/span> emprow<span class=\"token punctuation\">.<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u7ed3\u679c\u4f8b\u5982==SCOTT\u7684\u5de5\u4f5c\u4e3a\uff1aANALYST<\/span>\n\t\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u603b\u7ed3\uff1a<\/span>\n\u8d4b\u503c\u64cd\u4f5c\u53ef\u4ee5\u7528\u3010:<span class=\"token operator\">=<\/span>\u3011\u4e5f\u53ef\u4ee5\u7528\u3010<span class=\"token keyword\">into<\/span>\u67e5\u8be2\u8bed\u53e5\u3011\u8d4b\u503c\n<\/code><\/pre>\n<h4>\u6d41\u7a0b\u7ed3\u6784\uff1a<\/h4>\n<p>if\u5224\u65ad\uff1a<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u8f93\u5165\u5c0f\u4e8e18\u7684\u6570\u5b57\uff0c\u8f93\u51fa\u672a\u6210\u5e74\uff1b\u8f93\u5165\u5927\u4e8e18\u5c0f\u4e8e40\u6570\u5b57\uff0c\u8f93\u51fa\u4e2d\u5e74\u4eba\uff1b\u8f93\u5165\u5927\u4e8e40\u7684\u6570\u5b57\uff0c\u8f93\u51fa\u8001\u5e74\u4eba<\/span>\n<span class=\"token keyword\">declare<\/span>\n\ti number<span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span> :<span class=\"token operator\">=<\/span> <span class=\"token operator\">&amp;<\/span>ii<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u8f93\u5165\u4e00\u4e2a\u6570\u503c\u7c7b\u578b\u7684\u6570\u636e\u5e76\u8d4b\u503c\u7ed9i<\/span>\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">if<\/span> i<span class=\"token operator\">&lt;<\/span><span class=\"token number\">18<\/span> <span class=\"token keyword\">then<\/span>\n\t\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span><span class=\"token string\">'\u672a\u6210\u5e74'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\telsif i<span class=\"token operator\">&lt;<\/span><span class=\"token number\">40<\/span> <span class=\"token keyword\">then<\/span>\n\t\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span><span class=\"token string\">'\u4e2d\u5e74\u4eba'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">else<\/span>\n\t\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span><span class=\"token string\">'\u8001\u5e74\u4eba'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">end<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<p>loop\u5faa\u73af:<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u7528\u4e09\u79cd\u65b9\u5f0f\u8f93\u51fa1-10<\/span>\n<span class=\"token comment\">-------------------------------------------while\u5faa\u73af<\/span>\n<span class=\"token keyword\">declare<\/span>\n\ti number<span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span> :<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">while<\/span> i<span class=\"token operator\">&lt;<\/span><span class=\"token number\">11<\/span> <span class=\"token keyword\">loop<\/span>\n\t\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\ti :<span class=\"token operator\">=<\/span> i<span class=\"token operator\">+<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">end<\/span> <span class=\"token keyword\">loop<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token comment\">-------------------------------------------exit\u5faa\u73af<\/span>\n<span class=\"token keyword\">declare<\/span>\n\ti number<span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span> :<span class=\"token operator\">=<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">loop<\/span>\n\t\t<span class=\"token keyword\">exit<\/span> <span class=\"token keyword\">when<\/span> i<span class=\"token operator\">&gt;<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span>\n\t\t\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t\ti :<span class=\"token operator\">=<\/span> i<span class=\"token operator\">+<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">end<\/span> <span class=\"token keyword\">loop<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token comment\">-------------------------------------------for\u5faa\u73af<\/span>\n<span class=\"token keyword\">declare<\/span>\n\t\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">for<\/span> i <span class=\"token operator\">in<\/span> <span class=\"token number\">1.<\/span><span class=\"token number\">.10<\/span> <span class=\"token keyword\">loop<\/span>\n\t\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">end<\/span> <span class=\"token keyword\">loop<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>\u6e38\u6807<\/h4>\n<p>\u6982\u5ff5\uff1a\u53ef\u4ee5\u5b58\u653e\u591a\u4e2a\u5bf9\u8c61\uff0c\u591a\u884c\u8bb0\u5f55\uff0c\u76f8\u5bf9\u4e8e\u96c6\u5408<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">-- \u8f93\u51faemp\u8868\u4e2d\u6240\u6709\u5458\u5de5\u7684\u59d3\u540d\u53ca\u5de5\u4f5c<\/span>\n<span class=\"token keyword\">declare<\/span>\n\t<span class=\"token keyword\">cursor<\/span> c1 <span class=\"token operator\">is<\/span> \n\t<span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> \n\t<span class=\"token keyword\">from<\/span> emp<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6e38\u6807c1\uff0c\u5e76\u628aemp\u8868\u4e2d\u6240\u6709\u6570\u636e\u5b58\u5165\u4e86\u6e38\u6807<\/span>\n\t\n\temprow emp<span class=\"token operator\">%<\/span>rowtype<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u8bb0\u5f55\u578b\u53d8\u91cf\uff0c\u5b9a\u4e49\u4e00\u4e2a\u5b58emp\u8868\u4e2d\u4e00\u884c\u8bb0\u5f55\u7684\u53d8\u91cf\uff0c\u76f8\u5f53\u4e8e\u4e00\u4e2a\u5bf9\u8c61<\/span>\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">open<\/span> c1<span class=\"token punctuation\">;<\/span><span class=\"token comment\">--\u6253\u5f00\u6e38\u6807<\/span>\n\t\t<span class=\"token keyword\">loop<\/span>\n\t\t\t<span class=\"token keyword\">fetch<\/span> c1 <span class=\"token keyword\">into<\/span> emprow<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u628aemp\u4e00\u884c\u6570\u636e\u590d\u5236\u7ed9\u53d8\u91cfemprow<\/span>\n\t\t\t<span class=\"token keyword\">exit<\/span> <span class=\"token keyword\">when<\/span> c1<span class=\"token operator\">%<\/span>notfound<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u5f53\u6e38\u6807\u627e\u4e0d\u5230\u6570\u636e\u5373\u6700\u540e\u4e00\u884c\u65f6\u9000\u51fa\u5faa\u73af<\/span>\n\t\t\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>emprow<span class=\"token punctuation\">.<\/span>ename <span class=\"token operator\">||<\/span><span class=\"token string\">'--'<\/span><span class=\"token operator\">||<\/span> emprow<span class=\"token punctuation\">.<\/span>job<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token keyword\">end<\/span> <span class=\"token keyword\">loop<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">close<\/span> c1<span class=\"token punctuation\">;<\/span><span class=\"token comment\">--\u5173\u95ed\u6e38\u6807<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u7ed9\u6307\u5b9a\u90e8\u95e8\u5458\u5de5\u6da8\u5de5\u8d44<\/span>\n<span class=\"token keyword\">declare<\/span>\n\t<span class=\"token keyword\">cursor<\/span> c2<span class=\"token punctuation\">(<\/span>eno emp<span class=\"token punctuation\">.<\/span>deptno<span class=\"token operator\">%<\/span><span class=\"token keyword\">type<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">is<\/span> \n\t<span class=\"token keyword\">select<\/span> empno \n\t<span class=\"token keyword\">from<\/span> emp \n\t<span class=\"token keyword\">where<\/span> deptno<span class=\"token operator\">=<\/span>eno<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6e38\u6807\u5e76\u9700\u8981\u4f20\u5165\u4e00\u4e2a\u53c2\u6570eno<\/span>\n\t\n\ten emp<span class=\"token punctuation\">.<\/span>empno<span class=\"token operator\">%<\/span><span class=\"token keyword\">type<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">open<\/span> c2<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">--\u6253\u5f00\u6e38\u6807\u5e76\u4f20\u5165\u53c2\u657010<\/span>\n\t\t<span class=\"token keyword\">loop<\/span>\n\t\t\t<span class=\"token keyword\">fetch<\/span> c2 <span class=\"token keyword\">into<\/span> en<span class=\"token punctuation\">;<\/span>\n\t\t\t<span class=\"token keyword\">exit<\/span> <span class=\"token keyword\">when<\/span> c2<span class=\"token operator\">%<\/span>notfound<span class=\"token punctuation\">;<\/span>\n\t\t\t<span class=\"token keyword\">update<\/span> emp <span class=\"token keyword\">set<\/span> sal <span class=\"token operator\">=<\/span> sal<span class=\"token operator\">+<\/span><span class=\"token number\">100<\/span> <span class=\"token keyword\">where<\/span> empno <span class=\"token operator\">=<\/span> en<span class=\"token punctuation\">;<\/span>\n\t\t\t<span class=\"token keyword\">commit<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token keyword\">end<\/span> <span class=\"token keyword\">loop<\/span><span class=\"token punctuation\">;<\/span>\n\tcloce c2<span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>\u5b58\u50a8\u8fc7\u7a0b<\/h4>\n<p>\u6982\u5ff5\uff1a\u5b58\u50a8\u8fc7\u7a0b\u5c31\u662f\u63d0\u53d6\u5df2\u7ecf\u7f16\u8bd1\u597d\u7684\u4e00\u6bb5pl\/sql\u8bed\u8a00\uff0c\u653e\u7f6e\u5728\u6570\u636e\u5e93\u7aef,\u53ef\u4ee5\u76f4\u63a5\u88ab\u8c03\u7528\uff0c\u8fd9\u4e00\u6bb5pl\/sql\u4e00\u822c\u90fd\u662f\u56fa\u5b9a\u6b65\u9aa4\u7684\u4e1a\u52a1\u3002<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b\u8bed\u6cd5\uff1a <\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token operator\">or<\/span> <span class=\"token keyword\">replace<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token keyword\">procedure<\/span> \u8fc7\u7a0b\u540d<span class=\"token punctuation\">[<\/span>\u53c2\u6570\u540d <span class=\"token operator\">in<\/span><span class=\"token operator\">\/<\/span><span class=\"token keyword\">out<\/span> \u6570\u636e\u7c7b\u578b<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">]<\/span>\n<span class=\"token keyword\">AS<\/span> \u6216 <span class=\"token operator\">is<\/span>\n<span class=\"token keyword\">begin<\/span>\n\tplsql\u5b50\u7a0b\u5e8f\u4f53<span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">-- \u4f8b\uff1a\u7ed9\u6307\u5b9a\u5458\u5de5\u6da8100\u5757\u94b1<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token operator\">or<\/span> <span class=\"token keyword\">replace<\/span> <span class=\"token keyword\">procedure<\/span> pl<span class=\"token punctuation\">(<\/span>eno emp<span class=\"token punctuation\">.<\/span>empno<span class=\"token operator\">%<\/span><span class=\"token keyword\">type<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">--or replace\u8868\u793a\u5982\u679c\u5df2\u7ecf\u5b58\u5728\u8be5\u5b58\u50a8\u8fc7\u7a0b\u4ecd\u53ef\u4ee5\u6b63\u5e38\u6267\u884c<\/span>\n<span class=\"token operator\">is<\/span>\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">update<\/span> emp <span class=\"token keyword\">set<\/span> sal <span class=\"token operator\">=<\/span> sal<span class=\"token operator\">+<\/span><span class=\"token number\">100<\/span> <span class=\"token keyword\">where<\/span> empno <span class=\"token operator\">=<\/span> eno<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">commit<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u6d4b\u8bd5\u5b58\u50a8\u8fc7\u7a0bp1<\/span>\n<span class=\"token keyword\">declare<\/span>\n<span class=\"token keyword\">begin<\/span>\n\tpl<span class=\"token punctuation\">(<\/span><span class=\"token number\">7788<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u7ed3\u679c\uff1a\u5458\u5de5\u7f16\u53f7\u4e3a7788\u7684\u5458\u5de5\u5de5\u8d44\u6da8100<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<p><strong>out\u7c7b\u578b\u53c2\u6570\u5982\u4f55\u4f7f\u7528<\/strong><\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u4f7f\u7528\u5b58\u50a8\u8fc7\u7a0b\u6765\u7b97\u5e74\u85aa<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token operator\">or<\/span> <span class=\"token keyword\">replace<\/span> <span class=\"token keyword\">procedure<\/span> p_yearsal<span class=\"token punctuation\">(<\/span>eno emp<span class=\"token punctuation\">.<\/span>empno<span class=\"token operator\">%<\/span><span class=\"token keyword\">type<\/span><span class=\"token punctuation\">,<\/span>yearsal <span class=\"token keyword\">out<\/span> number<span class=\"token punctuation\">)<\/span> <span class=\"token comment\">--yearsal out number\u8868\u793ayearsal\u53c2\u6570\u4e3a\u8f93\u51fa\u53c2\u6570<\/span>\n<span class=\"token operator\">is<\/span>\n\ts number<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u5b58\u653e\u5de5\u8d44<\/span>\n\tc emp<span class=\"token punctuation\">.<\/span>comm<span class=\"token operator\">%<\/span><span class=\"token keyword\">type<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u5b58\u653e\u5956\u91d1<\/span>\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">select<\/span> sal<span class=\"token operator\">*<\/span><span class=\"token number\">12<\/span><span class=\"token punctuation\">,<\/span>nvl<span class=\"token punctuation\">(<\/span>comm<span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">into<\/span> s<span class=\"token punctuation\">,<\/span>c \n\t<span class=\"token keyword\">from<\/span> emp \n\t<span class=\"token keyword\">where<\/span> empno<span class=\"token operator\">=<\/span>eno<span class=\"token punctuation\">;<\/span>\n\tyearsal :<span class=\"token operator\">=<\/span> s<span class=\"token operator\">+<\/span>c<span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n\n\n<span class=\"token comment\">--\u6d4b\u8bd5\u5b58\u50a8\u8fc7\u7a0bp_yearsal<\/span>\n<span class=\"token keyword\">declare<\/span>\n\tyearsal number<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u5b9a\u4e49\u53d8\u91cf\u653e\u5165\u5b58\u50a8\u8fc7\u7a0b\u6539\u53d8\u5176\u503c<\/span>\n<span class=\"token keyword\">begin<\/span>\n\tp_yearsal<span class=\"token punctuation\">(<\/span><span class=\"token number\">7788<\/span><span class=\"token punctuation\">,<\/span>yearsal<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--yearsal\u7684\u503c\u5728\u5b58\u50a8\u8fc7\u7a0b\u5185\u88ab\u6539\u53d8<\/span>\n\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>yearsal<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">--\u7ed3\u679c\uff1a\u8f93\u51fa\u5458\u5de5\u7f16\u53f7\u4e3a7788\u7684\u5458\u5de5\u7684\u5e74\u85aa<\/span>\nen\n<\/code><\/pre>\n<blockquote>\n<p>in\u548cout\u7c7b\u578b\u53c2\u6570\u7684\u533a\u522b\uff1a\u51e1\u662f\u6d89\u53ca\u5230into\u67e5\u8be2\u8bed\u53e5\u8d4b\u503c\u6216 := \u8d4b\u503c\u64cd\u4f5c\u7684\u53c2\u6570\uff0c\u90fd\u5fc5\u987b\u4f7f\u7528out\u6765\u4fee\u9970 \u5426\u5219\u5176\u4f59\u90fd\u7528in<\/p>\n<\/blockquote>\n<h4>\u5b58\u50a8\u51fd\u6570<\/h4>\n<p>\u4e0e\u5b58\u50a8\u8fc7\u7a0b\u533a\u522b\uff1a<\/p>\n<ul>\n<li>\u5b58\u50a8\u51fd\u6570\u53ef\u4ee5\u6709\u4e00\u4e2a\u8fd4\u56de\u503c\uff0c\u800c\u5b58\u50a8\u8fc7\u7a0b\u6ca1\u6709<\/li>\n<li>\u5b58\u50a8\u8fc7\u7a0b\u548c\u5b58\u50a8\u51fd\u6570\u7684\u53c2\u6570\u90fd\u4e0d\u80fd\u5e26\u957f\u5ea6<\/li>\n<li>\u5b58\u50a8\u51fd\u6570\u7684\u8fd4\u56de\u503c\u7c7b\u578b\u4e0d\u80fd\u5e26\u957f\u5ea6<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">--\u901a\u8fc7\u5b58\u50a8\u51fd\u6570\u5b9e\u73b0\u8ba1\u7b97\u6307\u5b9a\u5458\u5de5\u7684\u5e74\u85aa<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token operator\">or<\/span> <span class=\"token keyword\">replace<\/span> <span class=\"token keyword\">function<\/span> f_yearsal<span class=\"token punctuation\">(<\/span>eno emp<span class=\"token punctuation\">.<\/span>empno<span class=\"token operator\">%<\/span><span class=\"token keyword\">type<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">return<\/span> number <span class=\"token comment\">--\u8fd9\u91cc\u53c2\u6570\u548c\u8fd4\u56de\u503c\u7c7b\u578b\u4e0d\u80fd\u5e26\u957f\u5ea6<\/span>\n<span class=\"token operator\">is<\/span>\n\ts number<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">select<\/span> sal<span class=\"token operator\">*<\/span><span class=\"token number\">12<\/span><span class=\"token operator\">+<\/span>nvl<span class=\"token punctuation\">(<\/span>comm<span class=\"token punctuation\">,<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">into<\/span> s \n\t<span class=\"token keyword\">from<\/span> emp\n    <span class=\"token keyword\">where<\/span> empno <span class=\"token operator\">=<\/span> eno<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">return<\/span> s<span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u6d4b\u8bd5\u5b58\u50a8\u51fd\u6570f_yearsal<\/span>\n<span class=\"token comment\">--\u5b58\u50a8\u51fd\u6570\u5728\u8c03\u7528\u7684\u65f6\u5019\uff0c\u8fd4\u56de\u503c\u9700\u8981\u63a5\u6536\uff0c\u4e0d\u63a5\u53d7\u4f1a\u62a5\u9519<\/span>\n<span class=\"token keyword\">declare<\/span>\n\tsal_year number<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">begin<\/span>\n\tsal_year :<span class=\"token operator\">=<\/span> f_yearsal<span class=\"token punctuation\">(<\/span><span class=\"token number\">7788<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> \n\tdbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span>sal_year<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">--\u7ed3\u679c\uff1a\u8f93\u51fa\u5458\u5de5\u7f16\u53f7\u4e3a7788\u7684\u5458\u5de5\u7684\u5e74\u85aa<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<p><strong>\u5b58\u50a8\u8fc7\u7a0b\u548c\u5b58\u50a8\u51fd\u6570\u7684\u533a\u522b\uff1a<\/strong><\/p>\n<ul>\n<li>\u8bed\u6cd5\uff1a\n<ul>\n<li>\u5173\u952e\u5b57\u4e0d\u4e00\u6837<\/li>\n<li>\u5b58\u50a8\u51fd\u6570\u6bd4\u5b58\u50a8\u8fc7\u7a0b\u591a\u4e86\u4e24\u4e2areturn<\/li>\n<\/ul>\n<\/li>\n<li>\u672c\u8d28\u533a\u522b\uff1a\n<ul>\n<li>\u5b58\u50a8\u51fd\u6570\u6709\u8fd4\u56de\u503c\uff0c\u4e8c\u5b58\u50a8\u8fc7\u7a0b\u6ca1\u6709\u8fd4\u56de\u503c<\/li>\n<li>\u5982\u679c\u5b58\u50a8\u8fc7\u7a0b\u60f3\u5b9e\u73b0\u6709\u8fd4\u56de\u503c\u7684\u4e1a\u52a1\uff0c\u6211\u4eec\u5c31\u5fc5\u987b\u4f7f\u7528out\u7c7b\u578b\u7684\u53c2\u6570<\/li>\n<li>\u5373\u4fbf\u662f\u5b58\u50a8\u8fc7\u7a0b\u4f7f\u7528out\u7c7b\u578b\u7684\u53c2\u6570\uff0c\u5176\u672c\u8d28\u4e5f\u4e0d\u662f\u771f\u7684\u6709\u4e86\u8fd4\u56de\u503c<\/li>\n<li>\u800c\u662f\u5728\u5b58\u50a8\u8fc7\u7a0b\u5185\u90e8\u7ed9out\u7c7b\u578b\u53c2\u6570\u8d4b\u503c\uff0c\u5728\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u6211\u4eec\u76f4\u63a5\u62ff\u5230\u8f93\u51fa\u7c7b\u578b\u53c2\u6570\u7684\u503c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>\u89e6\u53d1\u5668<\/h4>\n<p>\u5236\u5b9a\u4e00\u4e2a\u89c4\u5219\uff0c\u5728\u3010\u589e\u5220\u6539\u3011\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u53ea\u8981\u6ee1\u8db3\u8be5\u89c4\u5219\uff0c\u81ea\u52a8\u89e6\u53d1\uff0c\u65e0\u9700\u8c03\u7528\u3002<\/p>\n<ul>\n<li>\u8bed\u53e5\u7ea7\u89e6\u53d1\u5668\uff1a\u4e0d\u5305\u542b\u6709for each row\u7684<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">-- \u4f8b:\u63d2\u5165\u4e00\u6761\u8bb0\u5f55\uff0c\u8f93\u51fa'\u521b\u5efaxxx'<\/span>\n\n<span class=\"token comment\">--\u521b\u5efa\u4e00\u4e2a\u89e6\u53d1\u5668t1<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token operator\">or<\/span> <span class=\"token keyword\">replace<\/span> <span class=\"token keyword\">trigger<\/span> t1\n<span class=\"token keyword\">after<\/span> \t\t<span class=\"token comment\">--\u8bed\u53e5\u6267\u884c\u524d\u8fd8\u662f\u540e\u6267\u884c\u8be5\u89e6\u53d1\u5668<\/span>\n<span class=\"token keyword\">insert<\/span>\t\t<span class=\"token comment\">--\u6267\u884c\u4ec0\u4e48\u8bed\u53e5\u4f1a\u89e6\u53d1<\/span>\n<span class=\"token keyword\">on<\/span> person\t<span class=\"token comment\">--\u4f5c\u7528\u54ea\u4e2a\u8868\u7684\u89e6\u53d1\u5668<\/span>\n<span class=\"token keyword\">declare<\/span>\n<span class=\"token keyword\">begin<\/span>\n  dbms_output<span class=\"token punctuation\">.<\/span>put_line<span class=\"token punctuation\">(<\/span><span class=\"token string\">'\u521b\u5efa\u4e86\u4e00\u4e2aperson'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">--\u89e6\u53d1t1<\/span>\n<span class=\"token keyword\">insert<\/span> <span class=\"token keyword\">into<\/span> person<span class=\"token punctuation\">(<\/span>pid<span class=\"token punctuation\">,<\/span> name<span class=\"token punctuation\">,<\/span> gender<span class=\"token punctuation\">,<\/span> birthday<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">values<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">'\u674e\u56db'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> to_date<span class=\"token punctuation\">(<\/span><span class=\"token string\">'2020-7-17'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">'yyyy-MM-dd'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<ul>\n<li>\n<p>\u884c\u7ea7\u89e6\u53d1\u5668\uff1a<\/p>\n<p>\u5305\u542b\u6709for each row\u7684\u5c31\u662f\u884c\u7ea7\u89e6\u53d1\u5668\u3002<\/p>\n<p>\u52a0for each row\u662f\u4e3a\u4e86\u4f7f\u7528 :old \u6216\u8005 :new \u5bf9\u8c61\u83b7\u53d6\u4e00\u884c\u8bb0\u5f55<\/p>\n<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-sql\"><span class=\"token comment\">-- \u4f8b\uff1a\u4e0d\u80fd\u7ed9\u5458\u5de5\u964d\u85aa<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token operator\">or<\/span> <span class=\"token keyword\">replace<\/span> <span class=\"token keyword\">trigger<\/span> t2\nbefore\nupdater\n<span class=\"token keyword\">on<\/span> emp\n<span class=\"token keyword\">for each row<\/span> <span class=\"token comment\">--\u8868\u793a\u884c\u7ea7\u89e6\u53d1\u5668<\/span>\n<span class=\"token keyword\">declare<\/span>\n\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">if<\/span> :old<span class=\"token punctuation\">.<\/span>sal <span class=\"token operator\">&gt;<\/span> :new<span class=\"token punctuation\">.<\/span>sal <span class=\"token keyword\">then<\/span>\n\t\t<span class=\"token comment\">-- \u629b\u51fa\u4e00\u4e2a\u5f02\u5e38raise_application_error(-20001~-20999\u4e4b\u95f4,'\u9519\u8bef\u63d0\u793a\u4fe1\u606f');<\/span>\n\t\traise_application_error<span class=\"token punctuation\">(<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">20001<\/span><span class=\"token punctuation\">,<\/span><span class=\"token string\">'\u4e0d\u80fd\u7ed9\u5458\u5de5\u964d\u85aa'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token keyword\">end<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">-- \u4f8b\uff1a\u4f7f\u7528\u89e6\u53d1\u5668\u5b9e\u73b0\u4e3b\u952e\u81ea\u589e<\/span>\n<span class=\"token comment\">--\u5206\u6790\uff1a\u5728\u7528\u6237\u63d2\u5165\u64cd\u4f5c\u4e4b\u524d\uff0c\u62ff\u5230\u5373\u5c06\u63d2\u5165\u7684\u6570\u636e\uff0c\u7ed9\u8be5\u6570\u636e\u4e2d\u7684\u4e3b\u952e\u5217\u8d4b\u503c\uff0c\u4f7f\u7528\u8be5\u529f\u80fd\u7528\u5230\u884c\u7ea7\u89e6\u53d1\u5668<\/span>\n<span class=\"token keyword\">create<\/span> <span class=\"token operator\">or<\/span> <span class=\"token keyword\">replace<\/span> <span class=\"token keyword\">trigger<\/span> auid\nbefore\n<span class=\"token keyword\">insert<\/span>\n<span class=\"token keyword\">on<\/span> person\n<span class=\"token keyword\">for each row<\/span>\n<span class=\"token keyword\">declare<\/span>\n\n<span class=\"token keyword\">begin<\/span>\n\t<span class=\"token keyword\">select<\/span> s_id_person<span class=\"token punctuation\">.<\/span>nextval <span class=\"token keyword\">into<\/span> :new<span class=\"token punctuation\">.<\/span>pid <span class=\"token keyword\">from<\/span> dual<span class=\"token punctuation\">;<\/span>\n\t<span class=\"token comment\">--s_person \u81ea\u5b9a\u4e49\u5e8f\u5217\u53f7\u540d\u5b57 <\/span>\n\t<span class=\"token comment\">--nextval \u53d6\u5e8f\u5217\u7684\u4e0b\u4e00\u4e2a\u503c <\/span>\n\t<span class=\"token comment\">--dual \u662foracle\u7684bai\u865a\u62df\u8868du,\u4e0d\u662f\u771f\u5b9e\u5b58\u5728\u7684<\/span>\n<span class=\"token keyword\">end<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<h4>java\u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b\u6216\u5b58\u50a8\u51fd\u6570<\/h4>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-java\"><span class=\"token operator\">--<\/span>\u9700\u8981jar\u5305\n\toracle10g <span class=\"token operator\">==<\/span> ojdbc14<span class=\"token punctuation\">.<\/span>jar\n\toracle11g <span class=\"token operator\">==<\/span> ojdbc6<span class=\"token punctuation\">.<\/span>jar\n<span class=\"token operator\">--<\/span>\u9700\u8981\u63a5\u53e3\n\tCallableStatement\n<\/code><\/pre>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">OracleDemo<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t<span class=\"token comment\">\/\/\u6d4b\u8bd5\u8fde\u63a5oracl\u6570\u636e\u5e93<\/span>\n\t<span class=\"token annotation punctuation\">@Test<\/span>\n\t<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">javaCallOracle<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> Exception <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\t<span class=\"token comment\">\/\/\u52a0\u8f7d\u6570\u636e\u5e93\u9a71\u52a8<\/span>\n\t\tClass<span class=\"token punctuation\">.<\/span><span class=\"token function\">forName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"oracle.jdbc.driver.OracleDriver\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u5f97\u5230Connection\u8fde\u63a5<\/span>\n\t\tConnection connection <span class=\"token operator\">=<\/span> DriverManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">getConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"jdbc:oracle:thin:@192.168.88.6:1521:orcl\"<\/span><span class=\"token punctuation\">,<\/span>\n\t\t\t\t<span class=\"token string\">\"root\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"root\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u5f97\u5230\u9884\u7f16\u8bd1\u7684Statement\u5bf9\u8c61<\/span>\n\t\tPreparedStatement pstm <span class=\"token operator\">=<\/span> connection<span class=\"token punctuation\">.<\/span><span class=\"token function\">prepareStatement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"select * from emp where empno = ?\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u7ed9\u53c2\u6570\u8d4b\u503c<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">setObject<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7788<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u6267\u884c\u6570\u636e\u5e93\u67e5\u8be2\u64cd\u4f5c<\/span>\n\t\tResultSet rs <span class=\"token operator\">=<\/span> pstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">executeQuery<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u8f93\u51fa\u7ed3\u679c<\/span>\n\t\t<span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span>rs<span class=\"token punctuation\">.<\/span><span class=\"token function\">next<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\t\tSystem<span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>rs<span class=\"token punctuation\">.<\/span><span class=\"token function\">getString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"ename\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token punctuation\">}<\/span>\n\t\t<span class=\"token comment\">\/\/\u91ca\u653e\u8d44\u6e90<\/span>\n\t\trs<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\tconnection<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n    \n\t<span class=\"token comment\">\/** * java\u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b * {?= call &lt;procedure-name&gt;[(&lt;arg1&gt;,&lt;arg2&gt;, ...)]} \u8c03\u7528\u5b58\u50a8\u51fd\u6570\u4f7f\u7528 * {call &lt;procedure-name&gt;[(&lt;arg1&gt;,&lt;arg2&gt;, ...)]} \u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b\u4f7f\u7528 * @throws Exception *\/<\/span>\n\t<span class=\"token annotation punctuation\">@Test<\/span>\n\t<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">javaCallProcedure<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> Exception <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\t<span class=\"token comment\">\/\/\u52a0\u8f7d\u6570\u636e\u5e93\u9a71\u52a8<\/span>\n\t\tClass<span class=\"token punctuation\">.<\/span><span class=\"token function\">forName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"oracle.jdbc.driver.OracleDriver\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u5f97\u5230Connection\u8fde\u63a5<\/span>\n\t\tConnection connection <span class=\"token operator\">=<\/span> DriverManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">getConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"jdbc:oracle:thin:@192.168.88.6:1521:orcl\"<\/span><span class=\"token punctuation\">,<\/span>\n\t\t\t\t<span class=\"token string\">\"root\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"root\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u5f97\u5230\u9884\u7f16\u8bd1\u7684Statement\u5bf9\u8c61<\/span>\n\t\tCallableStatement pstm <span class=\"token operator\">=<\/span> connection<span class=\"token punctuation\">.<\/span><span class=\"token function\">prepareCall<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"{call p_yearsal(?, ?)}\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/call p_yearsal(?, ?)\u4e3a\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5e26\u4e24\u4e2a\u53c2\u6570<\/span>\n\t\t<span class=\"token comment\">\/\/\u7ed9\u53c2\u6570\u8d4b\u503c<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">setObject<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7788<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u7b2c\u4e00\u4e2a\u53c2\u6570,\u67e5\u8be2\u7684id<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">registerOutParameter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> OracleTypes<span class=\"token punctuation\">.<\/span>NUMBER<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u65e0\u8fd4\u56de\u503c\uff0c\u7b2c\u4e8c\u53c2\u6570\u8868\u793a\u8f93\u51fa\u7c7b\u578b\u7684\u53c2\u6570==\u5458\u5de5\u5e74\u85aa<\/span>\n\t\t<span class=\"token comment\">\/\/\u6267\u884c\u6570\u636e\u5e93\u67e5\u8be2\u64cd\u4f5c<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u8f93\u51fa\u7ed3\u679c[\u7b2c\u4e8c\u4e2a\u53c2\u6570]<\/span>\n\t\tSystem<span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>pstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">getObject<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u91ca\u653e\u8d44\u6e90<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\tconnection<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n    \n\t<span class=\"token comment\">\/** * java\u8c03\u7528\u5b58\u50a8\u51fd\u6570 * {?= call &lt;procedure-name&gt;[(&lt;arg1&gt;,&lt;arg2&gt;, ...)]} \u8c03\u7528\u5b58\u50a8\u51fd\u6570\u4f7f\u7528 * {call &lt;procedure-name&gt;[(&lt;arg1&gt;,&lt;arg2&gt;, ...)]} \u8c03\u7528\u5b58\u50a8\u8fc7\u7a0b\u4f7f\u7528 * @throws Exception *\/<\/span>\n\t<span class=\"token annotation punctuation\">@Test<\/span>\n\t<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">javaCallFunction<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> Exception <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\t<span class=\"token comment\">\/\/\u52a0\u8f7d\u6570\u636e\u5e93\u9a71\u52a8<\/span>\n\t\tClass<span class=\"token punctuation\">.<\/span><span class=\"token function\">forName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"oracle.jdbc.driver.OracleDriver\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u5f97\u5230Connection\u8fde\u63a5<\/span>\n\t\tConnection connection <span class=\"token operator\">=<\/span> DriverManager<span class=\"token punctuation\">.<\/span><span class=\"token function\">getConnection<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"jdbc:oracle:thin:@192.168.88.6:1521:orcl\"<\/span><span class=\"token punctuation\">,<\/span>\n\t\t\t\t<span class=\"token string\">\"root\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"root\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u5f97\u5230\u9884\u7f16\u8bd1\u7684Statement\u5bf9\u8c61<\/span>\n\t\tCallableStatement pstm <span class=\"token operator\">=<\/span> connection<span class=\"token punctuation\">.<\/span><span class=\"token function\">prepareCall<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"{?= call f_yearsal(?)}\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u7ed9\u53c2\u6570\u8d4b\u503c<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">setObject<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7788<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/\u7b2c\u4e8c\u4e2a\uff1f\u8868\u793a\u5b58\u50a8\u51fd\u6570\u53c2\u6570==\u67e5\u8be2\u7684id<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">registerOutParameter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> OracleTypes<span class=\"token punctuation\">.<\/span>NUMBER<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u7b2c\u4e00\uff1f\u8868\u793a\u5b58\u50a8\u51fd\u6570\u8fd4\u56de\u503c<\/span>\n\t\t<span class=\"token comment\">\/\/\u6267\u884c\u6570\u636e\u5e93\u67e5\u8be2\u64cd\u4f5c<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">execute<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u8f93\u51fa\u7ed3\u679c[\u7b2c\u4e00\u4e2a\u53c2\u6570]<\/span>\n\t\tSystem<span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>pstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">getObject<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\t<span class=\"token comment\">\/\/\u91ca\u653e\u8d44\u6e90<\/span>\n\t\tpstm<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t\tconnection<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t<span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"Oracle\u57fa\u7840Oracle\u57fa\u7840\u5355\u884c\u51fd\u6570\uff1a\u4f5c\u7528\u4e8e\u4e00\u884c\uff0c\u8fd4\u56de\u4e00\u4e2a\u503c\u5b57\u7b26\u51fd\u6570selectupper(\"yse\")fromdual;\u7ed3\u679c\uff1aYESselectlower(\"YES\")fro...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/6499"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=6499"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/6499\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=6499"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=6499"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=6499"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}