{"id":159997,"date":"2024-11-03T19:25:20","date_gmt":"2024-11-03T11:25:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159997\/"},"modified":"2024-11-03T19:25:21","modified_gmt":"2024-11-03T11:25:21","slug":"mssql-%e6%95%99%e7%a8%8b-sql-update-%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159997\/","title":{"rendered":"MSSQL \u6559\u7a0b SQL UPDATE \u8a9e\u53e5"},"content":{"rendered":"<h1 id=\"mssql-%e6%95%99%e7%a8%8b-sql-update-%e8%aa%9e%e5%8f%a5-UAZAsnuCnz\">MSSQL \u6559\u7a0b SQL UPDATE \u8a9e\u53e5<\/h1>\n<p>\u5728\u8cc7\u6599\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cSQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u4e00\u7a2e\u7528\u65bc\u64cd\u4f5c\u548c\u7ba1\u7406\u8cc7\u6599\u7684\u6a19\u6e96\u8a9e\u8a00\u3002\u5c0d\u65bc\u4f7f\u7528 Microsoft SQL Server \u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c<strong>UPDATE<\/strong> \u8a9e\u53e5\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u5de5\u5177\uff0c\u56e0\u70ba\u5b83\u5141\u8a31\u7528\u6236\u66f4\u65b0\u8cc7\u6599\u8868\u4e2d\u7684\u73fe\u6709\u8a18\u9304\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e MSSQL \u7684 SQL UPDATE \u8a9e\u53e5\uff0c\u5305\u62ec\u5176\u8a9e\u6cd5\u3001\u4f7f\u7528\u7bc4\u4f8b\u53ca\u6ce8\u610f\u4e8b\u9805\u3002<\/p>\n<h2 id=\"sql-update-%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-UAZAsnuCnz\">SQL UPDATE \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>SQL UPDATE \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE \u8868\u540d\nSET \u6b04\u4f4d1 = \u503c1, \u6b04\u4f4d2 = \u503c2, ...\nWHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<strong>\u8868\u540d<\/strong> \u662f\u8981\u66f4\u65b0\u7684\u8cc7\u6599\u8868\u540d\u7a31\uff0c<strong>\u6b04\u4f4d<\/strong> \u662f\u8981\u4fee\u6539\u7684\u6b04\u4f4d\u540d\u7a31\uff0c\u800c<strong>\u503c<\/strong> \u662f\u8981\u8a2d\u5b9a\u7684\u65b0\u503c\u3002<strong>WHERE<\/strong> \u5b50\u53e5\u7528\u65bc\u6307\u5b9a\u54ea\u4e9b\u8a18\u9304\u9700\u8981\u88ab\u66f4\u65b0\uff0c\u9019\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u56e0\u70ba\u5982\u679c\u7701\u7565\u4e86 <strong>WHERE<\/strong> \u5b50\u53e5\uff0c\u5247\u6240\u6709\u8a18\u9304\u90fd\u6703\u88ab\u66f4\u65b0\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-UAZAsnuCnz\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 SQL UPDATE \u8a9e\u53e5\u4f86\u66f4\u65b0\u8cc7\u6599\u8868\u4e2d\u7684\u8a18\u9304\u3002<\/p>\n<pre><code>UPDATE Customers\nSET ContactName = 'Juan', City = 'Mexico City'\nWHERE CustomerID = 1;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u66f4\u65b0\u4e86 <strong>Customers<\/strong> \u8868\u4e2d <strong>CustomerID<\/strong> \u70ba 1 \u7684\u8a18\u9304\uff0c\u5c07 <strong>ContactName<\/strong> \u66f4\u65b0\u70ba &#8216;Juan&#8217;\uff0c\u4e26\u5c07 <strong>City<\/strong> \u66f4\u65b0\u70ba &#8216;Mexico City&#8217;\u3002<\/p>\n<h2 id=\"%e5%a4%9a%e9%87%8d%e6%9b%b4%e6%96%b0-UAZAsnuCnz\">\u591a\u91cd\u66f4\u65b0<\/h2>\n<p>\u5982\u679c\u9700\u8981\u540c\u6642\u66f4\u65b0\u591a\u500b\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528 <strong>WHERE<\/strong> \u5b50\u53e5\u4f86\u6307\u5b9a\u591a\u500b\u689d\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>UPDATE Customers\nSET City = 'New York'\nWHERE Country = 'USA';<\/code><\/pre>\n<p>\u9019\u500b\u8a9e\u53e5\u5c07\u6240\u6709\u570b\u5bb6\u70ba &#8216;USA&#8217; \u7684\u5ba2\u6236\u7684\u57ce\u5e02\u66f4\u65b0\u70ba &#8216;New York&#8217;\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-UAZAsnuCnz\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u5099\u4efd\u8cc7\u6599\uff1a<\/strong>\u5728\u57f7\u884c UPDATE \u8a9e\u53e5\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u8cc7\u6599\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u66f4\u65b0\u5c0e\u81f4\u8cc7\u6599\u640d\u5931\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e8b\u52d9\uff1a<\/strong>\u5728\u9032\u884c\u5927\u898f\u6a21\u66f4\u65b0\u6642\uff0c\u4f7f\u7528\u4e8b\u52d9\u53ef\u4ee5\u78ba\u4fdd\u8cc7\u6599\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n<li><strong>\u6e2c\u8a66\u66f4\u65b0\uff1a<\/strong>\u5728\u751f\u7522\u74b0\u5883\u4e2d\u57f7\u884c\u66f4\u65b0\u4e4b\u524d\uff0c\u6700\u597d\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\u5148\u9032\u884c\u6e2c\u8a66\uff0c\u4ee5\u78ba\u4fdd\u8a9e\u53e5\u7684\u6b63\u78ba\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-UAZAsnuCnz\">\u7d50\u8ad6<\/h2>\n<p>SQL UPDATE \u8a9e\u53e5\u662f MSSQL \u4e2d\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u529f\u80fd\uff0c\u80fd\u5920\u6709\u6548\u5730\u66f4\u65b0\u8cc7\u6599\u8868\u4e2d\u7684\u8a18\u9304\u3002\u900f\u904e\u6b63\u78ba\u7684\u8a9e\u6cd5\u548c\u7bc4\u4f8b\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u7ba1\u7406\u8cc7\u6599\u3002\u7121\u8ad6\u662f\u5728\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u7cfb\u7d71\u4e2d\uff0c\u638c\u63e1 SQL UPDATE \u8a9e\u53e5\u90fd\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u6280\u80fd\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u8cc7\u6599\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528 MSSQL \u7684 SQL UPDATE \u8a9e\u53e5\uff0c\u66f4\u65b0\u8cc7\u6599\u5eab\u4e2d\u7684\u8a18\u9304\uff0c\u638c\u63e1\u8a9e\u6cd5\u8207\u5be6\u7528\u7bc4\u4f8b\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6280\u80fd\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-159997","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159997","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=159997"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159997\/revisions"}],"predecessor-version":[{"id":159998,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159997\/revisions\/159998"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=159997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=159997"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=159997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}