{"id":170577,"date":"2024-11-06T22:37:18","date_gmt":"2024-11-06T14:37:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/170577\/"},"modified":"2024-11-06T22:37:18","modified_gmt":"2024-11-06T14:37:18","slug":"%e6%89%b9%e9%87%8f%e5%9f%b7%e8%a1%8csql%e8%aa%9e%e5%8f%a5%e7%9a%84%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/170577\/","title":{"rendered":"\u6279\u91cf\u57f7\u884cSQL\u8a9e\u53e5\u7684\u793a\u4f8b"},"content":{"rendered":"<h1 id=\"%e6%89%b9%e9%87%8f%e5%9f%b7%e8%a1%8csql%e8%aa%9e%e5%8f%a5%e7%9a%84%e7%a4%ba%e4%be%8b-OAlElWMZjH\">\u6279\u91cf\u57f7\u884cSQL\u8a9e\u53e5\u7684\u793a\u4f8b<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6279\u91cf\u57f7\u884cSQL\u8a9e\u53e5\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u64cd\u4f5c\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\uff0c\u9084\u80fd\u6e1b\u5c11\u8207\u6578\u64da\u5eab\u7684\u4ea4\u4e92\u6b21\u6578\uff0c\u5f9e\u800c\u964d\u4f4e\u5ef6\u9072\u548c\u8cc7\u6e90\u6d88\u8017\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6279\u91cf\u57f7\u884cSQL\u8a9e\u53e5\u7684\u6982\u5ff5\u3001\u512a\u52e2\u4ee5\u53ca\u4e00\u4e9b\u5be6\u969b\u7684\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%89%b9%e9%87%8f%e5%9f%b7%e8%a1%8csql%e8%aa%9e%e5%8f%a5%ef%bc%9f-OAlElWMZjH\">\u4ec0\u9ebc\u662f\u6279\u91cf\u57f7\u884cSQL\u8a9e\u53e5\uff1f<\/h2>\n<p>\u6279\u91cf\u57f7\u884cSQL\u8a9e\u53e5\u662f\u6307\u5728\u4e00\u6b21\u8acb\u6c42\u4e2d\u57f7\u884c\u591a\u689dSQL\u8a9e\u53e5\u7684\u904e\u7a0b\u3002\u9019\u901a\u5e38\u7528\u65bc\u9700\u8981\u5c0d\u6578\u64da\u5eab\u9032\u884c\u5927\u91cf\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u64cd\u4f5c\u7684\u60c5\u6cc1\u3002\u901a\u904e\u5c07\u591a\u689d\u8a9e\u53e5\u5408\u4f75\u70ba\u4e00\u500b\u8acb\u6c42\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/p>\n<h2 id=\"%e6%89%b9%e9%87%8f%e5%9f%b7%e8%a1%8c%e7%9a%84%e5%84%aa%e5%8b%a2-OAlElWMZjH\">\u6279\u91cf\u57f7\u884c\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u63d0\u9ad8\u6027\u80fd\uff1a<\/strong>\u901a\u904e\u6e1b\u5c11\u8207\u6578\u64da\u5eab\u7684\u4ea4\u4e92\u6b21\u6578\uff0c\u6279\u91cf\u57f7\u884c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u64cd\u4f5c\u7684\u901f\u5ea6\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u7db2\u7d61\u5ef6\u9072\uff1a<\/strong>\u6bcf\u6b21\u8207\u6578\u64da\u5eab\u7684\u4ea4\u4e92\u90fd\u6703\u7522\u751f\u5ef6\u9072\uff0c\u6279\u91cf\u57f7\u884c\u53ef\u4ee5\u6e1b\u5c11\u9019\u7a2e\u5ef6\u9072\u3002<\/li>\n<li><strong>\u7c21\u5316\u4ee3\u78bc\uff1a<\/strong>\u5c07\u591a\u689dSQL\u8a9e\u53e5\u5408\u4f75\u70ba\u4e00\u500b\u8acb\u6c42\uff0c\u53ef\u4ee5\u4f7f\u4ee3\u78bc\u66f4\u52a0\u7c21\u6f54\u6613\u8b80\u3002<\/li>\n<li><strong>\u4e8b\u52d9\u63a7\u5236\uff1a<\/strong>\u6279\u91cf\u57f7\u884c\u53ef\u4ee5\u5728\u4e00\u500b\u4e8b\u52d9\u4e2d\u8655\u7406\u591a\u689d\u8a9e\u53e5\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%89%b9%e9%87%8f%e5%9f%b7%e8%a1%8c%e7%9a%84%e7%a4%ba%e4%be%8b-OAlElWMZjH\">\u6279\u91cf\u57f7\u884c\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528\u4e0d\u540c\u6578\u64da\u5eab\u7cfb\u7d71\u9032\u884c\u6279\u91cf\u57f7\u884c\u7684\u793a\u4f8b\u3002<\/p>\n<h3 id=\"mysql%e4%b8%ad%e7%9a%84%e6%89%b9%e9%87%8f%e6%8f%92%e5%85%a5-OAlElWMZjH\">MySQL\u4e2d\u7684\u6279\u91cf\u63d2\u5165<\/h3>\n<pre><code>INSERT INTO users (name, email) VALUES \n('Alice', 'alice@example.com'),\n('Bob', 'bob@example.com'),\n('Charlie', 'charlie@example.com');<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4e00\u6b21\u6027\u63d2\u5165\u4e86\u4e09\u689d\u8a18\u9304\u3002\u9019\u6a23\u7684\u64cd\u4f5c\u6bd4\u9010\u689d\u63d2\u5165\u8981\u9ad8\u6548\u5f97\u591a\u3002<\/p>\n<h3 id=\"postgresql%e4%b8%ad%e7%9a%84%e6%89%b9%e9%87%8f%e6%9b%b4%e6%96%b0-OAlElWMZjH\">PostgreSQL\u4e2d\u7684\u6279\u91cf\u66f4\u65b0<\/h3>\n<pre><code>UPDATE users SET status = 'active' WHERE id IN (1, 2, 3);<\/code><\/pre>\n<p>\u9019\u689dSQL\u8a9e\u53e5\u5c07\u7528\u65bc\u5c07ID\u70ba1\u30012\u548c3\u7684\u7528\u6236\u72c0\u614b\u66f4\u65b0\u70ba\u201cactive\u201d\u3002\u9019\u6a23\u7684\u6279\u91cf\u66f4\u65b0\u64cd\u4f5c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u5c0d\u6578\u64da\u5eab\u7684\u8acb\u6c42\u6b21\u6578\u3002<\/p>\n<h3 id=\"sql-server%e4%b8%ad%e7%9a%84%e6%89%b9%e9%87%8f%e5%88%aa%e9%99%a4-OAlElWMZjH\">SQL Server\u4e2d\u7684\u6279\u91cf\u522a\u9664<\/h3>\n<pre><code>DELETE FROM users WHERE created_at &lt; '2022-01-01';<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u522a\u9664\u6240\u6709\u57282022\u5e741\u67081\u65e5\u4e4b\u524d\u5275\u5efa\u7684\u7528\u6236\u8a18\u9304\u3002\u901a\u904e\u6279\u91cf\u522a\u9664\uff0c\u6211\u5011\u53ef\u4ee5\u4e00\u6b21\u6027\u6e05\u7406\u5927\u91cf\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-OAlElWMZjH\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136\u6279\u91cf\u57f7\u884cSQL\u8a9e\u53e5\u6709\u5f88\u591a\u512a\u52e2\uff0c\u4f46\u5728\u5be6\u65bd\u6642\u4e5f\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u5eab\u9650\u5236\uff1a<\/strong>\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u5c0d\u65bc\u6bcf\u6b21\u8acb\u6c42\u4e2d\u53ef\u4ee5\u5305\u542b\u7684\u8a9e\u53e5\u6578\u91cf\u6709\u4e0d\u540c\u7684\u9650\u5236\uff0c\u9700\u67e5\u95b1\u76f8\u95dc\u6587\u6a94\u3002<\/li>\n<li><strong>\u4e8b\u52d9\u7ba1\u7406\uff1a<\/strong>\u5728\u6279\u91cf\u57f7\u884c\u6642\uff0c\u61c9\u8003\u616e\u4e8b\u52d9\u7684\u7ba1\u7406\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n<li><strong>\u932f\u8aa4\u8655\u7406\uff1a<\/strong>\u5728\u6279\u91cf\u57f7\u884c\u904e\u7a0b\u4e2d\uff0c\u82e5\u51fa\u73fe\u932f\u8aa4\uff0c\u9700\u6709\u76f8\u61c9\u7684\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u4ee5\u907f\u514d\u6578\u64da\u640d\u58de\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-OAlElWMZjH\">\u7e3d\u7d50<\/h2>\n<p>\u6279\u91cf\u57f7\u884cSQL\u8a9e\u53e5\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u65b9\u5f0f\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u4e26\u7c21\u5316\u4ee3\u78bc\u3002\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u958b\u767c\u8005\u61c9\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6279\u91cf\u57f7\u884c\u7b56\u7565\uff0c\u4e26\u6ce8\u610f\u76f8\u95dc\u7684\u9650\u5236\u548c\u7ba1\u7406\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u7684\u74b0\u5883\u4e2d\u4f7f\u7528<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u6279\u91cf\u57f7\u884cSQL\u8a9e\u53e5\u7684\u793a\u4f8b\uff0c\u5b78\u7fd2\u5982\u4f55\u9ad8\u6548\u8655\u7406\u591a\u689dSQL\u6307\u4ee4\u4ee5\u63d0\u5347\u6578\u64da\u5eab\u64cd\u4f5c\u6548\u7387\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-170577","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170577","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=170577"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170577\/revisions"}],"predecessor-version":[{"id":170578,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170577\/revisions\/170578"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=170577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=170577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=170577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}