{"id":78276,"date":"2024-10-16T11:44:51","date_gmt":"2024-10-16T03:44:51","guid":{"rendered":"https:\/\/server.hk\/cnblog\/78276\/"},"modified":"2024-10-16T11:44:51","modified_gmt":"2024-10-16T03:44:51","slug":"mysql%e6%8c%87%e4%bb%a4-delete%ef%bc%88%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/78276\/","title":{"rendered":"MySQL\u6307\u4ee4: DELETE\uff08\u522a\u9664\u6578\u64da\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-delete%ef%bc%88%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%ef%bc%89-wFTIkCrRFu\">MySQL\u6307\u4ee4: DELETE\uff08\u522a\u9664\u6578\u64da\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cMySQL\u662f\u4e00\u500b\u5ee3\u6cdb\u4f7f\u7528\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u5176\u63d0\u4f9b\u4e86\u591a\u7a2e\u6307\u4ee4\u4f86\u64cd\u4f5c\u6578\u64da\uff0c\u5176\u4e2dDELETE\u6307\u4ee4\u7528\u65bc\u522a\u9664\u6578\u64da\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eDELETE\u6307\u4ee4\u7684\u7528\u6cd5\u3001\u6ce8\u610f\u4e8b\u9805\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u793a\u4f8b\u3002<\/p>\n<h2 id=\"delete%e6%8c%87%e4%bb%a4%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-wFTIkCrRFu\">DELETE\u6307\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>DELETE\u6307\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>DELETE FROM \u8868\u540d WHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<strong>\u8868\u540d<\/strong>\u662f\u4f60\u60f3\u8981\u522a\u9664\u6578\u64da\u7684\u8868\u7684\u540d\u7a31\uff0c\u800c<strong>\u689d\u4ef6<\/strong>\u5247\u662f\u7528\u4f86\u6307\u5b9a\u54ea\u4e9b\u884c\u9700\u8981\u88ab\u522a\u9664\u7684\u689d\u4ef6\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u689d\u4ef6\uff0c\u5247\u6574\u500b\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\u90fd\u6703\u88ab\u522a\u9664\uff0c\u9019\u662f\u975e\u5e38\u5371\u96aa\u7684\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8delete%e6%8c%87%e4%bb%a4%e7%9a%84%e7%a4%ba%e4%be%8b-wFTIkCrRFu\">\u4f7f\u7528DELETE\u6307\u4ee4\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u4f7f\u7528DELETE\u6307\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b1-%e5%88%aa%e9%99%a4%e7%89%b9%e5%ae%9a%e6%a2%9d%e4%bb%b6%e7%9a%84%e6%95%b8%e6%93%9a-wFTIkCrRFu\">\u793a\u4f8b1: \u522a\u9664\u7279\u5b9a\u689d\u4ef6\u7684\u6578\u64da<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<strong>users<\/strong>\u7684\u8868\uff0c\u4e26\u4e14\u6211\u5011\u60f3\u8981\u522a\u9664\u7528\u6236ID\u70ba1\u7684\u7528\u6236\u6578\u64da\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE id = 1;<\/code><\/pre>\n<p>\u9019\u689d\u6307\u4ee4\u5c07\u6703\u522a\u9664ID\u70ba1\u7684\u7528\u6236\u6578\u64da\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b2-%e5%88%aa%e9%99%a4%e5%a4%9a%e6%a2%9d%e6%95%b8%e6%93%9a-wFTIkCrRFu\">\u793a\u4f8b2: \u522a\u9664\u591a\u689d\u6578\u64da<\/h3>\n<p>\u5982\u679c\u6211\u5011\u60f3\u8981\u522a\u9664\u6240\u6709\u5e74\u9f61\u5927\u65bc30\u7684\u7528\u6236\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE age &gt; 30;<\/code><\/pre>\n<p>\u9019\u6a23\u6703\u522a\u9664\u6240\u6709\u5e74\u9f61\u5927\u65bc30\u7684\u7528\u6236\u6578\u64da\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b3-%e5%88%aa%e9%99%a4%e6%95%b4%e5%80%8b%e8%a1%a8%e7%9a%84%e6%95%b8%e6%93%9a-wFTIkCrRFu\">\u793a\u4f8b3: \u522a\u9664\u6574\u500b\u8868\u7684\u6578\u64da<\/h3>\n<p>\u5982\u679c\u6211\u5011\u60f3\u8981\u522a\u9664<strong>users<\/strong>\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\uff0c\u53ef\u4ee5\u9019\u6a23\u505a\uff1a<\/p>\n<pre><code>DELETE FROM users;<\/code><\/pre>\n<p>\u9019\u689d\u6307\u4ee4\u5c07\u6703\u522a\u9664<strong>users<\/strong>\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\uff0c\u4f46\u8868\u7d50\u69cb\u4ecd\u7136\u4fdd\u7559\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-wFTIkCrRFu\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u57f7\u884cDELETE\u6307\u4ee4\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u8aa4\u522a\u9664\u3002<\/li>\n<li><strong>\u4f7f\u7528WHERE\u689d\u4ef6\uff1a<\/strong>\u59cb\u7d42\u4f7f\u7528WHERE\u689d\u4ef6\u4f86\u9650\u5236\u522a\u9664\u7684\u7bc4\u570d\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u4f7f\u7528LIMIT\u9650\u5236\u522a\u9664\u6578\u91cf\uff1a<\/strong>\u5982\u679c\u9700\u8981\u522a\u9664\u591a\u689d\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528LIMIT\u4f86\u9650\u5236\u522a\u9664\u7684\u6578\u91cf\uff0c\u4f8b\u5982\uff1a<\/li>\n<\/ul>\n<pre><code>DELETE FROM users WHERE age &gt; 30 LIMIT 10;<\/code><\/pre>\n<p>\u9019\u6a23\u5c07\u53ea\u522a\u9664\u5e74\u9f61\u5927\u65bc30\u7684\u524d10\u689d\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-wFTIkCrRFu\">\u7d50\u8ad6<\/h2>\n<p>DELETE\u6307\u4ee4\u662fMySQL\u4e2d\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u7528\u65bc\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u6b63\u78ba\u4f7f\u7528DELETE\u6307\u4ee4\u53ef\u4ee5\u5e6b\u52a9\u7dad\u8b77\u6578\u64da\u5eab\u7684\u6574\u6f54\u548c\u6027\u80fd\u3002\u7136\u800c\uff0c\u4f7f\u7528\u6642\u5fc5\u9808\u8b39\u614e\uff0c\u4ee5\u907f\u514d\u610f\u5916\u522a\u9664\u91cd\u8981\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u5c0d\u65bcVPS\u6216\u5176\u4ed6\u6578\u64da\u5eab\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\u6709\u8208\u8da3\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\uff0c\u63a2\u7d22\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u53ca\u5176\u4ed6\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u6307\u4ee4DELETE\uff0c\u5b78\u7fd2\u5982\u4f55\u6709\u6548\u522a\u9664\u6578\u64da\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7ba1\u7406\u7684\u6e96\u78ba\u6027\u8207\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-78276","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78276","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=78276"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78276\/revisions"}],"predecessor-version":[{"id":78277,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/78276\/revisions\/78277"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=78276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=78276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=78276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}