{"id":217812,"date":"2023-12-23T00:40:29","date_gmt":"2023-12-22T16:40:29","guid":{"rendered":"https:\/\/www.idc.net\/help\/217812\/"},"modified":"2023-12-23T00:40:29","modified_gmt":"2023-12-22T16:40:29","slug":"mysql%e4%bd%bf%e7%94%a8%e6%89%8b%e5%86%8c%ef%bc%9a%e4%bd%bf%e7%94%a8not%e5%85%b3%e9%94%ae%e5%ad%97%e6%8e%92%e9%99%a4%e6%bb%a1%e8%b6%b3%e6%9f%90%e6%9d%a1%e4%bb%b6%e7%9a%84%e8%ae%b0%e5%bd%95-2","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/217812\/","title":{"rendered":"MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528NOT\u5173\u952e\u5b57\u6392\u9664\u6ee1\u8db3\u67d0\u6761\u4ef6\u7684\u8bb0\u5f55"},"content":{"rendered":"<p><title id=\"mysql%e4%bd%bf%e7%94%a8%e6%89%8b%e5%86%8c%ef%bc%9a%e4%bd%bf%e7%94%a8not%e5%85%b3%e9%94%ae%e5%ad%97%e6%8e%92%e9%99%a4%e6%bb%a1%e8%b6%b3%e6%9f%90%e6%9d%a1%e4%bb%b6%e7%9a%84%e8%ae%b0%e5%bd%95-WzrOymUySX\">MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528NOT\u5173\u952e\u5b57\u6392\u9664\u6ee1\u8db3\u67d0\u6761\u4ef6\u7684\u8bb0\u5f55<\/title><\/p>\n<h1 id=\"mysql%e4%bd%bf%e7%94%a8%e6%89%8b%e5%86%8c%ef%bc%9a%e4%bd%bf%e7%94%a8not%e5%85%b3%e9%94%ae%e5%ad%97%e6%8e%92%e9%99%a4%e6%bb%a1%e8%b6%b3%e6%9f%90%e6%9d%a1%e4%bb%b6%e7%9a%84%e8%ae%b0%e5%bd%95-WzrOymUySX\">MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528NOT\u5173\u952e\u5b57\u6392\u9664\u6ee1\u8db3\u67d0\u6761\u4ef6\u7684\u8bb0\u5f55<\/h1>\n<p>\u5728MySQL\u4e2d\uff0c\u4f7f\u7528NOT\u5173\u952e\u5b57\u53ef\u4ee5\u6392\u9664\u6ee1\u8db3\u67d0\u4e2a\u6761\u4ef6\u7684\u8bb0\u5f55\u3002NOT\u5173\u952e\u5b57\u662f\u7528\u6765\u53d6\u53cd\u7684\uff0c\u5b83\u53ef\u4ee5\u7528\u4e8e\u5404\u79cd\u67e5\u8be2\u8bed\u53e5\u4e2d\uff0c\u5305\u62ecSELECT\u3001UPDATE\u548cDELETE\u8bed\u53e5\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8not%e5%85%b3%e9%94%ae%e5%ad%97%e7%9a%84select%e8%af%ad%e5%8f%a5-WzrOymUySX\">\u4f7f\u7528NOT\u5173\u952e\u5b57\u7684SELECT\u8bed\u53e5<\/h2>\n<p>\u5728SELECT\u8bed\u53e5\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528NOT\u5173\u952e\u5b57\u6765\u6392\u9664\u6ee1\u8db3\u67d0\u4e2a\u6761\u4ef6\u7684\u8bb0\u5f55\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a\"users\"\u7684\u8868\uff0c\u5176\u4e2d\u5305\u542b\u7528\u6237\u7684\u59d3\u540d\u548c\u5e74\u9f84\u4fe1\u606f\u3002\u6211\u4eec\u60f3\u8981\u67e5\u8be2\u5e74\u9f84\u4e0d\u7b49\u4e8e18\u5c81\u7684\u7528\u6237\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u53e5\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE NOT age = 18;<\/code><\/pre>\n<p>\u8fd9\u4e2a\u67e5\u8be2\u8bed\u53e5\u5c06\u8fd4\u56de\u6240\u6709\u5e74\u9f84\u4e0d\u7b49\u4e8e18\u5c81\u7684\u7528\u6237\u8bb0\u5f55\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8not%e5%85%b3%e9%94%ae%e5%ad%97%e7%9a%84update%e8%af%ad%e5%8f%a5-WzrOymUySX\">\u4f7f\u7528NOT\u5173\u952e\u5b57\u7684UPDATE\u8bed\u53e5<\/h2>\n<p>\u5728UPDATE\u8bed\u53e5\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528NOT\u5173\u952e\u5b57\u6765\u6392\u9664\u6ee1\u8db3\u67d0\u4e2a\u6761\u4ef6\u7684\u8bb0\u5f55\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u60f3\u8981\u5c06\u6240\u6709\u5e74\u9f84\u4e0d\u7b49\u4e8e18\u5c81\u7684\u7528\u6237\u7684\u5e74\u9f84\u66f4\u65b0\u4e3a20\u5c81\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u53e5\uff1a<\/p>\n<pre><code>UPDATE users SET age = 20 WHERE NOT age = 18;<\/code><\/pre>\n<p>\u8fd9\u4e2aUPDATE\u8bed\u53e5\u5c06\u628a\u6240\u6709\u5e74\u9f84\u4e0d\u7b49\u4e8e18\u5c81\u7684\u7528\u6237\u7684\u5e74\u9f84\u66f4\u65b0\u4e3a20\u5c81\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8not%e5%85%b3%e9%94%ae%e5%ad%97%e7%9a%84delete%e8%af%ad%e5%8f%a5-WzrOymUySX\">\u4f7f\u7528NOT\u5173\u952e\u5b57\u7684DELETE\u8bed\u53e5<\/h2>\n<p>\u5728DELETE\u8bed\u53e5\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528NOT\u5173\u952e\u5b57\u6765\u6392\u9664\u6ee1\u8db3\u67d0\u4e2a\u6761\u4ef6\u7684\u8bb0\u5f55\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u60f3\u8981\u5220\u9664\u6240\u6709\u5e74\u9f84\u4e0d\u7b49\u4e8e18\u5c81\u7684\u7528\u6237\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u53e5\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE NOT age = 18;<\/code><\/pre>\n<p>\u8fd9\u4e2aDELETE\u8bed\u53e5\u5c06\u5220\u9664\u6240\u6709\u5e74\u9f84\u4e0d\u7b49\u4e8e18\u5c81\u7684\u7528\u6237\u8bb0\u5f55\u3002<\/p>\n<h2 id=\"%e6%80%bb%e7%bb%93-WzrOymUySX\">\u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u4f7f\u7528NOT\u5173\u952e\u5b57\uff0c\u6211\u4eec\u53ef\u4ee5\u5728MySQL\u4e2d\u6392\u9664\u6ee1\u8db3\u67d0\u4e2a\u6761\u4ef6\u7684\u8bb0\u5f55\u3002\u5728SELECT\u3001UPDATE\u548cDELETE\u8bed\u53e5\u4e2d\uff0c\u4f7f\u7528NOT\u5173\u952e\u5b57\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u7075\u6d3b\u5730\u64cd\u4f5c\u6570\u636e\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5bfb\u627e\u53ef\u9760\u7684\u4e91\u8ba1\u7b97\u670d\u52a1\u63d0\u4f9b\u5546\uff0c\u540e\u6d6a\u4e91\u662f\u60a8\u7684\u9996\u9009\u3002\u540e\u6d6a\u4e91\u63d0\u4f9b\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u548c\u4e91\u670d\u52a1\u5668\u7b49\u591a\u79cd\u4ea7\u54c1\uff0c\u4e3a\u60a8\u63d0\u4f9b\u7a33\u5b9a\u53ef\u9760\u7684\u4e91\u8ba1\u7b97\u89e3\u51b3\u65b9\u6848\u3002\u60a8\u53ef\u4ee5\u8bbf\u95ee<a href=\"https:\/\/idc.net\">\u540e\u6d6a\u4e91\u5b98\u7f51<\/a>\u4e86\u89e3\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528NOT\u5173\u952e\u5b57\u6392\u9664\u6ee1\u8db3\u67d0\u6761\u4ef6\u7684\u8bb0\u5f55 MySQL\u4f7f\u7528\u624b\u518c\uff1a\u4f7f\u7528NOT\u5173\u952e\u5b57\u6392\u9664\u6ee1\u8db3\u67d0\u6761\u4ef6\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[197851],"tags":[],"class_list":["post-217812","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=217812"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/217812\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=217812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=217812"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=217812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}