{"id":342,"date":"2023-09-16T10:44:55","date_gmt":"2023-09-16T02:44:55","guid":{"rendered":""},"modified":"2023-09-16T15:50:11","modified_gmt":"2023-09-16T07:50:11","slug":"sql-server-%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%88%aa%e5%8f%96","status":"publish","type":"post","link":"https:\/\/mushiming.com\/342.html","title":{"rendered":"SQL server \u5b57\u7b26\u4e32\u622a\u53d6"},"content":{"rendered":"<pre><code class=\"language-html hljs\">--1\u3001LEFT()\u65b9\u6cd5---\n--\u51fd\u6570\u8bf4\u660e---\n--1\uff09\u8bed\u6cd5\uff1aLEFT(character,integer)  \n--2\uff09\u4ecb\u7ecd\uff1a\u53c2\u65701\uff1a\u8981\u622a\u53d6\u7684\u5b57\u7b26\u4e32\uff0c\u53c2\u65702\uff1a\u622a\u53d6\u5b57\u7b26\u4e2a\u6570\n--3\uff09\u4f7f\u7528\uff1a\n--\u8fd4\u56de\u4ece\u5b57\u7b26\u4e32\u5de6\u8fb9\u5f00\u59cb\u6307\u5b9a\u4e2a\u6570\u7684\u5b57\u7b26--\nselect LEFT('SqlServer_2008',4)\n--4\uff09\u8fd4\u56de\uff1aSqlS<\/code><\/pre>\n<pre><code class=\"language-html hljs\">--1\u3001RIGHT()\u65b9\u6cd5---\n-- right()\u51fd\u6570\u8bf4\u660e---\n--1\uff09\u8bed\u6cd5\uff1aRIGHT(character,integer)  \n--2\uff09\u4ecb\u7ecd\uff1a\u53c2\u65701\uff1a\u8981\u622a\u53d6\u7684\u5b57\u7b26\u4e32\uff0c\u53c2\u65702\uff1a\u622a\u53d6\u5b57\u7b26\u4e2a\u6570\n--3\uff09\u4f7f\u7528\uff1a\n--\u8fd4\u56de\u4ece\u5b57\u7b26\u4e32\u53f3\u8fb9\u5f00\u59cb\u6307\u5b9a\u4e2a\u6570\u7684\u5b57\u7b26--\nselect LEFT('SqlServer_2008',4)\n--4\uff09\u8fd4\u56de\uff1a2008\n\n--1\u3001SUBSTRING()\u65b9\u6cd5---\n-- substring()\u51fd\u6570\u8bf4\u660e---\n--1\uff09\u8bed\u6cd5\uff1aSUBSTRING(character,start,length)  \n--2\uff09\u4ecb\u7ecd\uff1a\u53c2\u65701\uff1a\u8981\u622a\u53d6\u7684\u5b57\u7b26\u4e32\uff0c\u53c2\u65702\uff1a\u5f00\u59cb\u622a\u53d6\u7684\u4e0b\u6807\uff0c\u53c2\u65703\uff1a\u622a\u53d6\u7684\u5b57\u7b26\u957f\u5ea6\n--3\uff09\u4f7f\u7528\uff1a\n--\u8fd4\u56de\u4ece\u5b57\u7b26\u4e32\u4e2d\u95f4\u7684\u5b57\u7b26--\nselect SUBSTRING('SqlServer_2008',4,6)\n--4\uff09\u8fd4\u56de\uff1aServer<\/code><\/pre>\n<p>\u73b0\u5728\u6709\u4e00\u79cd\u9700\u6c42 \u83b7\u53d6 \u20185.2300-6.00323-7.00-8.00-9.00-10.0023 '&nbsp; \u7c7b\u4f3c\u8fd9\u79cd\u5b57\u7b26\u4e32\u3002\u67e5\u8be2\u6700\u540e\u4e00\u4e2a - \u540e\u9762 \u7684\u6570\u5b57&nbsp; \u4e2d\u95f4\u6709\u591a\u5c11\u4e2a -&nbsp; \u4e0d\u786e\u5b9a\u3002<\/p>\n<p>\u4ee5\u4e0a\u4e09\u79cd\u51fd\u6570 \u90fd\u4e0d\u80fd\u7528\u4e86&nbsp; \u56e0\u4e3a\u4f60\u4e0d\u77e5\u9053\u6700\u540e\u4e00\u4e2a\u6570 \u5230\u5e95\u6709\u591a\u5c11\u4f4d\uff0c\u4e5f\u4e0d\u77e5\u9053\u4e2d\u95f4\u6709\u591a\u5c11 - \u3002<\/p>\n<p>\u8fd9\u662f\u6211\u4eec\u9700\u8981\u7528\u5230\u4e00\u4e2a\u51fd\u6570&nbsp;REVERSE&nbsp; \u5c06\u5b57\u7b26\u4e32\u5012\u53d9<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/050d1ceb08de4bc08e2b804b68cbecdc.png\" =\"\" =\"\" alt=\"SQL server \u5b57\u7b26\u4e32\u622a\u53d6 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c1\u5f20\" title=\"SQL server \u5b57\u7b26\u4e32\u622a\u53d6 \u6280\u672f\u535a\u5ba2 \u7b2c1\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>&nbsp;\u8fd9\u65f6\u5019\u5c31\u53ef\u4ee5\u5199SQL\u4e86<\/p>\n<pre class=\"has\"><code>select RIGHT('123-123.4566-454.4979-12321.789-456.79-57899-0.264-456.8135', CHARINDEX('-', REVERSE('123-123.4566-454.4979-12321.789-456.79-57899-0.264-456.8135'))-1 ) <\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/0eb8630d84684ef9807cc4b8aba6ad4a.png\" =\"\" =\"\" alt=\"SQL server \u5b57\u7b26\u4e32\u622a\u53d6 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c2\u5f20\" title=\"SQL server \u5b57\u7b26\u4e32\u622a\u53d6 \u6280\u672f\u535a\u5ba2 \u7b2c2\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>\u5728\u8fd9\u91cc&nbsp; \u6211\u4eec\u5148\u7528&nbsp;&nbsp;REVERSE&nbsp; \u51fd\u6570 \u5c06\u5b57\u7b26\u4e32\u5012\u53d9&nbsp; \uff0c\u7136\u540e\u7528CHARINDEX \u65e9\u51fa&nbsp; - \u7b2c\u4e00\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e \u518d\u7528&nbsp;&nbsp;RIGHT \u51fd\u6570\u4ece\u53f3\u8fb9\u5f00\u59cb\u622a\u53d6 \u5c31OK\u4e86<\/p>\n","protected":false},"excerpt":{"rendered":"--1\u3001LEFT()\u65b9\u6cd5-----\u51fd\u6570\u8bf4\u660e-----1\uff09\u8bed\u6cd5\uff1aLEFT(character,integer)--2\uff09\u4ecb\u7ecd\uff1a\u53c2\u65701\uff1a\u8981\u622a\u53d6\u7684\u5b57\u7b26\u4e32\uff0c\u53c2\u65702\uff1a\u622a\u53d6\u5b57\u7b26\u4e2a...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/342"}],"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=342"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/342\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}