{"id":200556,"date":"2025-05-06T13:16:31","date_gmt":"2025-05-06T05:16:31","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200556\/"},"modified":"2025-05-06T13:16:31","modified_gmt":"2025-05-06T05:16:31","slug":"mysql-%e5%85%b3%e9%94%ae%e5%ad%97%e6%89%a7%e8%a1%8c%e9%a1%ba%e5%ba%8f%ef%bc%9ain-%e5%92%8c-union-%e7%9a%84%e4%bd%8d%e7%bd%ae%e5%9c%a8%e5%93%aa%e9%87%8c%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200556\/","title":{"rendered":"MySQL \u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN \u548c UNION \u7684\u4f4d\u7f6e\u5728\u54ea\u91cc\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL \u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN \u548c UNION \u7684\u4f4d\u7f6e\u5728\u54ea\u91cc\uff1f<\/h1>\n<p>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241108\/1731047468672db02c56046.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>MySQL \u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u89e3\u6790<\/strong><\/p>\n<p>\u5728 MySQL \u6570\u636e\u5e93\u4e2d\uff0c\u5173\u952e\u5b57\u7684\u6267\u884c\u987a\u5e8f\u5bf9\u4e8e\u67e5\u8be2\u4f18\u5316\u81f3\u5173\u91cd\u8981\u3002\u5178\u578b\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u5982\u4e0b\uff1a<\/p>\n<p>FROM &gt; ON &gt; JOIN &gt; WHERE &gt; GROUP BY &gt; HAVING &gt; SELECT &gt; DISTINCT &gt; ORDER BY &gt; LIMIT<\/p>\n<p><strong>IN \u548c UNION \u5173\u952e\u5b57\u7684\u7279\u6b8a\u6027<\/strong><\/p>\n<p>\u7136\u800c\uff0c\u5728\u7ed9\u5b9a\u7684\u6267\u884c\u987a\u5e8f\u4e2d\uff0cIN \u548c UNION \u8fd9\u4e24\u4e2a\u5173\u952e\u5b57\u6ca1\u6709\u53c2\u4e0e\u6392\u5e8f\u3002\u8fd9\u662f\u56e0\u4e3a\uff1a<\/p>\n<ul>\n<li><strong>IN\uff1a<\/strong> IN \u662f WHERE \u5b50\u53e5\u4e2d\u7684\u8fd0\u7b97\u7b26\uff0c\u4e0e BETWEEN\u3001= \u548c LIKE \u7b49\u5176\u4ed6\u8fd0\u7b97\u7b26\u7c7b\u4f3c\u3002\u5b83\u7528\u4e8e\u5728\u5217\u4e2d\u67e5\u627e\u7279\u5b9a\u7684\u503c\uff0c\u56e0\u6b64\u4e0d\u53d7\u6267\u884c\u987a\u5e8f\u7684\u5f71\u54cd\u3002<\/li>\n<li><strong>UNION\uff1a<\/strong> UNION \u662f\u4e00\u4e2a\u96c6\u5408\u8fd0\u7b97\u7b26\uff0c\u7528\u4e8e\u5408\u5e76\u6765\u81ea\u591a\u4e2a\u67e5\u8be2\u7684\u7ed3\u679c\u3002\u5b83\u4e0d\u5f71\u54cd\u6267\u884c\u8ba1\u5212\uff0c\u56e0\u4e3a\u88ab UNION \u7684\u591a\u4e2a\u67e5\u8be2\u72ec\u7acb\u6267\u884c\u5e76\u89e3\u91ca\u3002<\/li>\n<\/ul>\n<p>\u56e0\u6b64\uff0cIN \u548c UNION \u5728\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u4e2d\u6ca1\u6709\u7279\u5b9a\u4f4d\u7f6e\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e0d\u5f71\u54cd\u8868\u7684\u6392\u5e8f\u6216\u67e5\u8be2\u7684\u4efb\u4f55\u5176\u4ed6\u65b9\u9762\u3002<\/p>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6570\u636e\u5e93\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN&#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-200556","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200556","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=200556"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200556\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}