{"id":5184,"date":"2024-11-14T11:24:55","date_gmt":"2024-11-14T03:24:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5184\/"},"modified":"2024-11-14T11:24:55","modified_gmt":"2024-11-14T03:24:55","slug":"sql%e4%b8%addelete%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5184\/","title":{"rendered":"sql\u4e2ddelete\u7528\u6cd5"},"content":{"rendered":"<p><strong>sql \u4e2d\u7684 delete \u8bed\u53e5<\/strong><\/p>\n<p><strong>DELETE \u8bed\u53e5\u7684\u4f5c\u7528\uff1a<\/strong><\/p>\n<p>DELETE \u8bed\u53e5\u7528\u4e8e\u4ece\u6570\u636e\u5e93\u8868\u4e2d\u5220\u9664\u4e00\u884c\u6216\u591a\u884c\u6570\u636e\u3002<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>DELETE FROM table_name\nWHERE condition;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>table_name\uff1a\u8981\u4ece\u4e2d\u5220\u9664\u6570\u636e\u7684\u8868\u540d<\/li>\n<li>condition\uff1a\u53ef\u9009\u7684\u6761\u4ef6\uff0c\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u7684\u7279\u5b9a\u884c<\/li>\n<\/ul>\n<p><strong>\u4f7f\u7528\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u5220\u9664\u8868 customers \u4e2d\u6240\u6709\u540d\u4e3a &#8220;John&#8221; \u7684\u5ba2\u6237\uff1a<\/p>\n<pre>DELETE FROM customers\nWHERE first_name = 'John';<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u5220\u9664\u8868 orders \u4e2d\u8ba2\u5355 ID \u5927\u4e8e 100 \u7684\u6240\u6709\u8ba2\u5355\uff1a<\/p>\n<pre>DELETE FROM orders\nWHERE order_id &gt; 100;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n<ul>\n<li>DELETE \u8bed\u53e5\u6267\u884c\u540e\u65e0\u6cd5\u64a4\u9500\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u524d\u8bf7\u52a1\u5fc5\u614e\u91cd\u8003\u8651\u3002<\/li>\n<li>WHERE \u5b50\u53e5\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u7684\u7279\u5b9a\u884c\u3002\u5982\u679c\u4e0d\u6307\u5b9a WHERE \u5b50\u53e5\uff0c\u5219\u5c06\u5220\u9664\u8868\u4e2d\u7684\u6240\u6709\u884c\u3002<\/li>\n<li>DELETE \u8bed\u53e5\u4e0d\u8fd4\u56de\u4efb\u4f55\u7ed3\u679c\u96c6\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fsql\u4e2ddelete\u7528\u6cd5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>sql \u4e2d\u7684 delete \u8bed\u53e5 DELETE \u8bed\u53e5\u7684\u4f5c\u7528\uff1a DELETE \u8bed\u53e5\u7528\u4e8e\u4ece\u6570\u636e\u5e93\u8868\u4e2d\u5220\u9664\u4e00\u884c\u6216\u591a\u884c\u6570\u636e\u3002 \u8bed\u6cd5\uff1a DELETE FROM table_name WHERE condition; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a table_name\uff1a\u8981\u4ece\u4e2d\u5220\u9664\u6570\u636e\u7684\u8868\u540d condition\uff1a\u53ef\u9009\u7684\u6761\u4ef6\uff0c\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u7684\u7279\u5b9a\u884c \u4f7f\u7528\u793a\u4f8b\uff1a \u5220\u9664\u8868 customers \u4e2d\u6240\u6709\u540d\u4e3a &#8220;John&#8221; \u7684\u5ba2\u6237\uff1a DELETE FROM customers WHERE first_name = &#8216;John&#8217;; \u767b\u5f55\u540e\u590d\u5236 \u5220\u9664\u8868 orders \u4e2d\u8ba2\u5355 ID \u5927\u4e8e 100 \u7684\u6240\u6709\u8ba2\u5355\uff1a DELETE FROM orders WHERE order_id &gt; 100; \u767b\u5f55\u540e\u590d\u5236 \u6ce8\u610f\u4e8b\u9879\uff1a DELETE \u8bed\u53e5\u6267\u884c\u540e\u65e0\u6cd5\u64a4\u9500\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u524d\u8bf7\u52a1\u5fc5\u614e\u91cd\u8003\u8651\u3002 WHERE \u5b50\u53e5\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u7684\u7279\u5b9a\u884c\u3002\u5982\u679c\u4e0d\u6307\u5b9a WHERE \u5b50\u53e5\uff0c\u5219\u5c06\u5220\u9664\u8868\u4e2d\u7684\u6240\u6709\u884c\u3002 DELETE [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5184","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5184","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5184"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5184\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5184"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5184"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5184"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}