{"id":193581,"date":"2024-11-12T23:23:21","date_gmt":"2024-11-12T15:23:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/193581\/"},"modified":"2024-11-12T23:23:22","modified_gmt":"2024-11-12T15:23:22","slug":"%e5%ad%b8%e7%bf%92%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e8%aa%9e%e5%8f%a5-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/193581\/","title":{"rendered":"\u5b78\u7fd2\u6578\u64da\u5eab\u522a\u9664\u6578\u64da\u8a9e\u53e5 (\u6578\u64da\u5eab\u522a\u9664\u6578\u64da\u8a9e\u53e5)"},"content":{"rendered":"<h1 id=\"%e5%ad%b8%e7%bf%92%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e8%aa%9e%e5%8f%a5-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e8%aa%9e%e5%8f%a5-IcVyTohqym\">\u5b78\u7fd2\u6578\u64da\u5eab\u522a\u9664\u6578\u64da\u8a9e\u53e5 (\u6578\u64da\u5eab\u522a\u9664\u6578\u64da\u8a9e\u53e5)<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u522a\u9664\u6578\u64da\u662f\u4e00\u9805\u91cd\u8981\u7684\u64cd\u4f5c\u3002\u7121\u8ad6\u662f\u56e0\u70ba\u6578\u64da\u4e0d\u518d\u9700\u8981\uff0c\u9084\u662f\u56e0\u70ba\u6578\u64da\u9700\u8981\u66f4\u65b0\uff0c\u6b63\u78ba\u5730\u4f7f\u7528\u522a\u9664\u8a9e\u53e5\u662f\u78ba\u4fdd\u6578\u64da\u5eab\u6574\u9ad4\u5065\u5eb7\u7684\u95dc\u9375\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6578\u64da\u5eab\u522a\u9664\u6578\u64da\u8a9e\u53e5\u7684\u57fa\u672c\u6982\u5ff5\u3001\u8a9e\u6cd5\u53ca\u5176\u4f7f\u7528\u6ce8\u610f\u4e8b\u9805\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a%e8%aa%9e%e5%8f%a5%ef%bc%9f-IcVyTohqym\">\u4ec0\u9ebc\u662f\u522a\u9664\u6578\u64da\u8a9e\u53e5\uff1f<\/h2>\n<p>\u522a\u9664\u6578\u64da\u8a9e\u53e5\uff08DELETE\uff09\u662f\u7528\u65bc\u5f9e\u6578\u64da\u5eab\u8868\u4e2d\u522a\u9664\u4e00\u689d\u6216\u591a\u689d\u8a18\u9304\u7684SQL\u8a9e\u53e5\u3002\u9019\u500b\u64cd\u4f5c\u53ef\u4ee5\u6839\u64da\u7279\u5b9a\u689d\u4ef6\u4f86\u9078\u64c7\u6027\u5730\u522a\u9664\u6578\u64da\uff0c\u5f9e\u800c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u640d\u5931\u3002<\/p>\n<h2 id=\"delete-%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e8%aa%9e%e6%b3%95-IcVyTohqym\">DELETE \u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n<p>DELETE \u8a9e\u53e5\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\u7be9\u9078\u9700\u8981\u522a\u9664\u7684\u8a18\u9304\u7684\u689d\u4ef6\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u689d\u4ef6\uff0c\u5247\u6703\u522a\u9664\u8868\u4e2d\u6240\u6709\u7684\u8a18\u9304\uff0c\u9019\u901a\u5e38\u4e0d\u662f\u4e00\u500b\u5b89\u5168\u7684\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%af%84%e4%be%8b-IcVyTohqym\">\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 DELETE \u8a9e\u53e5\uff1a<\/p>\n<pre><code>DELETE FROM customers WHERE customer_id = 1;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u6703\u522a\u9664 <strong>customers<\/strong> \u8868\u4e2d <strong>customer_id<\/strong> \u70ba 1 \u7684\u8a18\u9304\u3002<\/p>\n<h3 id=\"%e5%88%aa%e9%99%a4%e5%a4%9a%e6%a2%9d%e8%a8%98%e9%8c%84-IcVyTohqym\">\u522a\u9664\u591a\u689d\u8a18\u9304<\/h3>\n<p>\u5982\u679c\u9700\u8981\u522a\u9664\u591a\u689d\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528 AND \u6216 OR \u4f86\u7d44\u5408\u689d\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>DELETE FROM orders WHERE order_date &lt; '2023-01-01' AND status = 'canceled';<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u522a\u9664\u6240\u6709\u5728 2023 \u5e74 1 \u6708 1 \u65e5\u4e4b\u524d\u4e14\u72c0\u614b\u70ba &#8216;canceled&#8217; \u7684\u8a02\u55ae\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-IcVyTohqym\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u5099\u4efd\u6578\u64da\uff1a<\/strong>\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u522a\u9664\u91cd\u8981\u6578\u64da\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e8b\u52d9\uff1a<\/strong>\u5728\u652f\u6301\u4e8b\u52d9\u7684\u6578\u64da\u5eab\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e8b\u52d9\u4f86\u78ba\u4fdd\u522a\u9664\u64cd\u4f5c\u7684\u539f\u5b50\u6027\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u51fa\u73fe\u932f\u8aa4\u6642\u9032\u884c\u56de\u6efe\u3002<\/li>\n<li><strong>\u6aa2\u67e5\u689d\u4ef6\uff1a<\/strong>\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u52d9\u5fc5\u6aa2\u67e5\u689d\u4ef6\u662f\u5426\u6b63\u78ba\uff0c\u4ee5\u907f\u514d\u522a\u9664\u4e0d\u61c9\u8a72\u522a\u9664\u7684\u6578\u64da\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-IcVyTohqym\">\u7d50\u8ad6<\/h2>\n<p>\u522a\u9664\u6578\u64da\u8a9e\u53e5\u662f\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u6b63\u78ba\u4f7f\u7528 DELETE \u8a9e\u53e5\u53ef\u4ee5\u5e6b\u52a9\u7dad\u8b77\u6578\u64da\u5eab\u7684\u6574\u6f54\u548c\u6548\u7387\u3002\u7136\u800c\uff0c\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u6642\u5fc5\u9808\u8b39\u614e\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u640d\u5931\u3002\u4e86\u89e3 DELETE \u8a9e\u53e5\u7684\u8a9e\u6cd5\u548c\u4f7f\u7528\u65b9\u6cd5\uff0c\u4e26\u9075\u5faa\u6700\u4f73\u5be6\u8e10\uff0c\u5c07\u6709\u52a9\u65bc\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u5065\u5eb7\u904b\u884c\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u6216\u5176\u4ed6\u76f8\u95dc\u6280\u8853\u6709\u8208\u8da3\uff0c\u8003\u616e\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u4f86\u9032\u884c\u5be6\u9a57\u548c\u5b78\u7fd2\uff0c\u9019\u5c07\u70ba\u60a8\u63d0\u4f9b\u4e00\u500b\u9748\u6d3b\u4e14\u9ad8\u6548\u7684\u74b0\u5883\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u6578\u64da\u5eab\u522a\u9664\u6578\u64da\u8a9e\u53e5\u7684\u7528\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u5b89\u5168\u6709\u6548\u5730\u522a\u9664\u4e0d\u9700\u8981\u7684\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\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-193581","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193581","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=193581"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193581\/revisions"}],"predecessor-version":[{"id":193582,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/193581\/revisions\/193582"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=193581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=193581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=193581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}