{"id":200367,"date":"2025-05-06T08:13:50","date_gmt":"2025-05-06T00:13:50","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200367\/"},"modified":"2025-05-06T08:13:50","modified_gmt":"2025-05-06T00:13:50","slug":"mysql-%e4%b8%ad%e7%9a%84%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%e7%89%b9%e6%ae%8a%e6%83%85%e5%86%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200367\/","title":{"rendered":"MySQL \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN \u548c UNION \u7684\u7279\u6b8a\u60c5\u51b5"},"content":{"rendered":"

<\/b> <\/p>\n

MySQL \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN \u548c UNION \u7684\u7279\u6b8a\u60c5\u51b5<\/h1>\n

\u4eca\u5929\u4e3b\u673a\u5b9d\u8d1d\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n

<\/p>\n

mysql \u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u4e0e in\u3001union \u9664\u5916\u60c5\u51b5<\/strong><\/p>\n

mysql \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u4e00\u822c\u4e3a\uff1a<\/p>\n

FROM -> ON -> JOIN -> WHERE -> GROUP BY -> HAVING -> SELECT -> DISTINCT -> ORDER BY -> LIMIT<\/pre>\n
\u7136\u800c\uff0c\u95ee\u9898\u4e2d\u63d0\u5230\u7684 in \u548c union \u5173\u952e\u5b57\u5e76\u672a\u6309\u7167\u6b64\u987a\u5e8f\u6267\u884c\u3002\u8fd9\u662f\u56e0\u4e3a\uff1a<\/p>\n
    \n
  • in\uff1a\u5c5e\u4e8e where \u5b50\u53e5<\/strong><\/li>\n<\/ul>\n
    in \u662f where \u5b50\u53e5\u4e2d\u7684\u4e00\u4e2a\u7b26\u53f7\uff0c\u4e0e between\u3001=\u3001like \u7b49\u7b26\u53f7\u4f5c\u7528\u7c7b\u4f3c\uff0c\u7528\u4e8e\u8fc7\u6ee4\u6570\u636e\u3002\u56e0\u6b64\uff0cin \u7684\u6267\u884c\u987a\u5e8f\u53d7\u9650\u4e8e where \u5b50\u53e5\u7684\u6267\u884c\u987a\u5e8f\uff0c\u5373\u5728 where \u6761\u4ef6\u5224\u65ad\u4e4b\u540e\u6267\u884c\u3002<\/p>\n
      \n
    • union\uff1a\u72ec\u7acb\u89e3\u91ca\u6267\u884c<\/strong><\/li>\n<\/ul>\n
      union \u7528\u4e8e\u5408\u5e76\u4e24\u4e2a\u6216\u591a\u4e2a\u67e5\u8be2\u7ed3\u679c\u3002\u6bcf\u4e2a union \u67e5\u8be2\u5c06\u88ab\u72ec\u7acb\u89e3\u91ca\u548c\u6267\u884c\uff0c\u5176\u81ea\u8eab\u7684\u5b50\u67e5\u8be2\u5c06\u9075\u5faa\u5e38\u89c4\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u3002\u56e0\u6b64\uff0cunion \u5173\u952e\u5b57\u672c\u8eab\u4e0d\u5f71\u54cd\u6267\u884c\u987a\u5e8f\u3002<\/p>\n
      \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
      \n
      \n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
      MySQL \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1a...<\/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-200367","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200367","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=200367"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200367\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}