{"id":200938,"date":"2025-05-06T10:58:19","date_gmt":"2025-05-06T02:58:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200938\/"},"modified":"2025-05-06T10:58:19","modified_gmt":"2025-05-06T02:58:19","slug":"mysql-%e6%9f%a5%e8%af%a2%e6%9d%a1%e4%bb%b6%e6%8b%ac%e5%8f%b7%e4%b8%8d%e5%8c%b9%e9%85%8d%e6%8a%a5%e9%94%99%ef%bc%8c%e5%a6%82%e4%bd%95%e6%8e%92%e6%9f%a5%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200938\/","title":{"rendered":"MySQL \u67e5\u8be2\u6761\u4ef6\u62ec\u53f7\u4e0d\u5339\u914d\u62a5\u9519\uff0c\u5982\u4f55\u6392\u67e5\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL \u67e5\u8be2\u6761\u4ef6\u62ec\u53f7\u4e0d\u5339\u914d\u62a5\u9519\uff0c\u5982\u4f55\u6392\u67e5\uff1f<\/h1>\n<p>\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241122\/1732247153673ffe71c54a6.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql\u67e5\u8be2\u6761\u4ef6\u4e2d\u62ec\u53f7\u4e0d\u5339\u914d\u62a5\u9519\u6392\u67e5<\/strong><\/p>\n<p>\u5728\u4f60\u63d0\u4f9b\u7684\u4ee3\u7801\u4e2d\uff0c\u6392\u67e5\u5230\u67e5\u8be2\u6761\u4ef6\u7684\u62ec\u53f7\u4e0d\u6210\u5bf9\uff0c\u5bfc\u81f4\u51fa\u9519\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u67096\u4e2a\u5de6\u62ec\u53f7(&#8220;)\u548c5\u4e2a\u53f3\u62ec\u53f7(\uff09)\uff0c\u5b58\u5728\u4e00\u4e2a\u62ec\u53f7\u4e0d\u5339\u914d\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u539f\u4ee3\u7801\uff1a<\/p>\n<pre>select p.* from product as p , product_product_category as c where p.deleting = 0 and ( p.product_category_id in ( 1, 2 ) or (p.product_id = c.product_id and c.product_category_id in ( 1, 2 ) )<\/pre>\n<p>\u6839\u636e\u4f60\u7684\u8868\u5173\u8054\u65b9\u5f0f\uff0c\u6b63\u786e\u7684\u4ee3\u7801\u5e94\u8be5\u662f\uff1a<\/p>\n<pre>SELECT p.* FROM product AS p , product_product_category AS c WHERE p.deleting = 0 AND ( p.product_category_id IN ( 1, 2 ) OR (p.product_id = c.product_id AND c.product_category_id IN ( 1, 2 )) )<\/pre>\n<p>\u5728\u4fee\u6539\u67e5\u8be2\u6761\u4ef6\u540e\uff0c\u62ec\u53f7\u5df2\u7ecf\u6210\u5bf9\u5339\u914d\uff0c\u9519\u8bef\u5e94\u8be5\u5f97\u5230\u89e3\u51b3\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aMySQL \u67e5\u8be2\u6761\u4ef6\u62ec\u53f7\u4e0d\u5339\u914d\u62a5\u9519\uff0c\u5982\u4f55\u6392\u67e5\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u67e5\u8be2\u6761\u4ef6\u62ec\u53f7\u4e0d\u5339\u914d\u62a5&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200938","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200938","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200938"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200938\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}