{"id":186578,"date":"2024-11-11T07:05:17","date_gmt":"2024-11-10T23:05:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186578\/"},"modified":"2024-11-11T07:05:18","modified_gmt":"2024-11-10T23:05:18","slug":"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9b%b4%e6%96%b0%ef%bc%9asql%e8%aa%9e%e5%8f%a5%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%absql%e8%aa%9e%e5%8f%a5%e6%9b%b4%e6%96%b0%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186578\/","title":{"rendered":"\u6578\u64da\u5eab\u66f4\u65b0\uff1aSQL\u8a9e\u53e5\u64cd\u4f5c\u6578\u64da\uff08\u6578\u64da\u5eabsql\u8a9e\u53e5\u66f4\u65b0\u6578\u64da\uff09"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9b%b4%e6%96%b0%ef%bc%9asql%e8%aa%9e%e5%8f%a5%e6%93%8d%e4%bd%9c%e6%95%b8%e6%93%9a%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%absql%e8%aa%9e%e5%8f%a5%e6%9b%b4%e6%96%b0%e6%95%b8-NcxPTAYIwf\">\u6578\u64da\u5eab\u66f4\u65b0\uff1aSQL\u8a9e\u53e5\u64cd\u4f5c\u6578\u64da\uff08\u6578\u64da\u5eabsql\u8a9e\u53e5\u66f4\u65b0\u6578\u64da\uff09<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6578\u64da\u5eab\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u7121\u8ad6\u662f\u7db2\u7ad9\u3001\u79fb\u52d5\u61c9\u7528\u9084\u662f\u4f01\u696d\u7cfb\u7d71\uff0c\u6578\u64da\u5eab\u90fd\u7528\u65bc\u5b58\u5132\u548c\u7ba1\u7406\u5927\u91cf\u7684\u6578\u64da\u3002\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u6578\u64da\u7684\u66f4\u65b0\u8b8a\u5f97\u4e0d\u53ef\u907f\u514d\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528SQL\u8a9e\u53e5\u4f86\u66f4\u65b0\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2 id=\"sql%e8%aa%9e%e5%8f%a5%e6%a6%82%e8%bf%b0-NcxPTAYIwf\">SQL\u8a9e\u53e5\u6982\u8ff0<\/h2>\n<p>SQL\uff08\u7d50\u69cb\u5316\u67e5\u8a62\u8a9e\u8a00\uff09\u662f\u4e00\u7a2e\u7528\u65bc\u7ba1\u7406\u548c\u64cd\u4f5c\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7684\u6a19\u6e96\u8a9e\u8a00\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684\u8a9e\u53e5\u4f86\u57f7\u884c\u5404\u7a2e\u64cd\u4f5c\uff0c\u5305\u62ec\u67e5\u8a62\u3001\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u66f4\u65b0\u6578\u64da\u7684\u4e3b\u8981\u8a9e\u53e5\u662f<strong>UPDATE<\/strong>\u8a9e\u53e5\u3002<\/p>\n<h2 id=\"update%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-NcxPTAYIwf\">UPDATE\u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>UPDATE\u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>UPDATE \u8868\u540d\nSET \u52171 = \u503c1, \u52172 = \u503c2, ...\nWHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<strong>\u8868\u540d<\/strong>\u662f\u8981\u66f4\u65b0\u7684\u6578\u64da\u8868\uff0c<strong>SET<\/strong>\u5f8c\u9762\u8ddf\u8457\u8981\u66f4\u65b0\u7684\u5217\u53ca\u5176\u65b0\u503c\uff0c\u800c<strong>WHERE<\/strong>\u5b50\u53e5\u5247\u7528\u65bc\u6307\u5b9a\u54ea\u4e9b\u884c\u9700\u8981\u88ab\u66f4\u65b0\u3002\u5982\u679c\u4e0d\u4f7f\u7528WHERE\u5b50\u53e5\uff0c\u5247\u6240\u6709\u884c\u90fd\u6703\u88ab\u66f4\u65b0\u3002<\/p>\n<h2 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-NcxPTAYIwf\">\u793a\u4f8b\uff1a\u66f4\u65b0\u6578\u64da<\/h2>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<strong>\u54e1\u5de5<\/strong>\u7684\u8868\uff0c\u7d50\u69cb\u5982\u4e0b\uff1a<\/p>\n<pre><code>\u54e1\u5de5ID | \u59d3\u540d | \u8077\u4f4d | \u85aa\u6c34\n1      | \u5f35\u4e09 | \u958b\u767c\u8005 | 50000\n2      | \u674e\u56db | \u6e2c\u8a66\u54e1 | 40000\n3      | \u738b\u4e94 | \u7d93\u7406   | 60000<\/code><\/pre>\n<p>\u5982\u679c\u6211\u5011\u60f3\u8981\u5c07\u674e\u56db\u7684\u85aa\u6c34\u66f4\u65b0\u70ba45000\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>UPDATE \u54e1\u5de5\nSET \u85aa\u6c34 = 45000\nWHERE \u59d3\u540d = '\u674e\u56db';<\/code><\/pre>\n<p>\u57f7\u884c\u9019\u689d\u8a9e\u53e5\u5f8c\uff0c\u674e\u56db\u7684\u85aa\u6c34\u5c07\u88ab\u66f4\u65b0\u70ba45000\uff0c\u800c\u5176\u4ed6\u54e1\u5de5\u7684\u6578\u64da\u4fdd\u6301\u4e0d\u8b8a\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%a4%9a%e6%a2%9d%e6%9b%b4%e6%96%b0%e8%aa%9e%e5%8f%a5-NcxPTAYIwf\">\u4f7f\u7528\u591a\u689d\u66f4\u65b0\u8a9e\u53e5<\/h2>\n<p>\u6709\u6642\u5019\uff0c\u6211\u5011\u9700\u8981\u540c\u6642\u66f4\u65b0\u591a\u500b\u5217\u3002\u5047\u8a2d\u6211\u5011\u60f3\u8981\u5c07\u738b\u4e94\u7684\u8077\u4f4d\u6539\u70ba\u300c\u9ad8\u7d1a\u7d93\u7406\u300d\uff0c\u4e26\u5c07\u85aa\u6c34\u66f4\u65b0\u70ba70000\uff0c\u53ef\u4ee5\u9019\u6a23\u5beb\uff1a<\/p>\n<pre><code>UPDATE \u54e1\u5de5\nSET \u8077\u4f4d = '\u9ad8\u7d1a\u7d93\u7406', \u85aa\u6c34 = 70000\nWHERE \u59d3\u540d = '\u738b\u4e94';<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-NcxPTAYIwf\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u9032\u884c\u4efb\u4f55\u66f4\u65b0\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u4f7f\u7528WHERE\u5b50\u53e5\uff1a<\/strong>\u59cb\u7d42\u4f7f\u7528WHERE\u5b50\u53e5\u4f86\u9650\u5236\u66f4\u65b0\u7684\u7bc4\u570d\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u66f4\u6539\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\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-NcxPTAYIwf\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528SQL\u8a9e\u53e5\u66f4\u65b0\u6578\u64da\u662f\u4e00\u9805\u57fa\u672c\u800c\u91cd\u8981\u7684\u6280\u80fd\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528UPDATE\u8a9e\u53e5\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u7dad\u8b77\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u7cfb\u7d71\uff0c\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u90fd\u5c07\u5c0d\u60a8\u7684\u6578\u64da\u7ba1\u7406\u5de5\u4f5c\u5927\u6709\u88e8\u76ca\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u548c\u6578\u64da\u5eab\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6027\u80fd\u9084\u662f\u5b89\u5168\u6027\uff0c\u9078\u64c7\u5408\u9069\u7684\u670d\u52d9\u5668\u90fd\u80fd\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u5f37\u6709\u529b\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528SQL\u8a9e\u53e5\u6709\u6548\u66f4\u65b0\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff0c\u638c\u63e1\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u95dc\u9375\u6280\u5de7\u8207\u6700\u4f73\u5be6\u8e10\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-186578","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186578","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=186578"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186578\/revisions"}],"predecessor-version":[{"id":186579,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186578\/revisions\/186579"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=186578"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=186578"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=186578"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}