{"id":7157,"date":"2024-11-14T14:05:59","date_gmt":"2024-11-14T06:05:59","guid":{"rendered":"https:\/\/fwq.ai\/blog\/7157\/"},"modified":"2024-11-14T14:05:59","modified_gmt":"2024-11-14T06:05:59","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:\/\/fwq.ai\/blog\/7157\/","title":{"rendered":"MySQL \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN \u548c UNION \u7684\u7279\u6b8a\u60c5\u51b5"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173053806486115.jpg\" class=\"aligncenter\" title=\"MySQL \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN \u548c UNION \u7684\u7279\u6b8a\u60c5\u51b5\u63d2\u56fe\" alt=\"MySQL \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN \u548c UNION \u7684\u7279\u6b8a\u60c5\u51b5\u63d2\u56fe\" \/><\/p>\n<p><strong> \u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u4e0e in\u3001union \u9664\u5916\u60c5\u51b5<\/strong><\/p>\n<p>mysql \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u4e00\u822c\u4e3a\uff1a<\/p>\n<pre>FROM -&gt; ON -&gt; JOIN -&gt; WHERE -&gt; GROUP BY -&gt; HAVING -&gt; SELECT -&gt; DISTINCT -&gt; ORDER BY -&gt; LIMIT<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\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<ul>\n<li><strong>in\uff1a\u5c5e\u4e8e where \u5b50\u53e5<\/strong><\/li>\n<\/ul>\n<p>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<ul>\n<li><strong>union\uff1a\u72ec\u7acb\u89e3\u91ca\u6267\u884c<\/strong><\/li>\n<\/ul>\n<p>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<p>\u4ee5\u4e0a\u5c31\u662fMySQL \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN \u548c UNION \u7684\u7279\u6b8a\u60c5\u51b5\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>\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u4e0e in\u3001union \u9664\u5916\u60c5\u51b5 mysql \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\u4e00\u822c\u4e3a\uff1a FROM -&gt; ON -&gt; JOIN -&gt; WHERE -&gt; GROUP BY -&gt; HAVING -&gt; SELECT -&gt; DISTINCT -&gt; ORDER BY -&gt; LIMIT \u767b\u5f55\u540e\u590d\u5236 \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 in\uff1a\u5c5e\u4e8e where \u5b50\u53e5 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 union\uff1a\u72ec\u7acb\u89e3\u91ca\u6267\u884c 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 \u4ee5\u4e0a\u5c31\u662fMySQL \u4e2d\u7684\u5173\u952e\u5b57\u6267\u884c\u987a\u5e8f\uff1aIN \u548c [&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-7157","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7157","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=7157"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/7157\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=7157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=7157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=7157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}