{"id":177971,"date":"2024-11-08T17:06:23","date_gmt":"2024-11-08T09:06:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177971\/"},"modified":"2024-11-08T17:06:24","modified_gmt":"2024-11-08T09:06:24","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41267-sqlstate-hy000-er_cant_aggregate_2collations-%e5%b0%8d%e6%93%8d%e4%bd%9cs%e4%bd%bf%e7%94%a8%e4%ba%86%e4%b8%8d%e5%90%8c%e6%a0%a1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177971\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41267 &#8211; SQLSTATE: HY000 (ER_CANT_AGGREGATE_2COLLATIONS) \u5c0d\u64cd\u4f5c&#8217;%s&#8217;\u4f7f\u7528\u4e86\u4e0d\u540c\u6821\u5c0d\uff08%s\uff0c%s\uff09\u548c\uff08%s\uff0c%s\uff09\u7684\u4e0d\u5408\u6cd5\u7d44\u5408"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41267-sqlstate-hy000-er_cant_aggregate_2collations-NVbRRQVRRd\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41267 &#8211; SQLSTATE: HY000 (ER_CANT_AGGREGATE_2COLLATIONS)<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa41267\uff0c\u8a72\u932f\u8aa4\u7684\u5b8c\u6574\u4fe1\u606f\u70ba\u201c\u5c0d\u64cd\u4f5c&#8217;%s&#8217;\u4f7f\u7528\u4e86\u4e0d\u540c\u6821\u5c0d\uff08%s\uff0c%s\uff09\u548c\uff08%s\uff0c%s\uff09\u7684\u4e0d\u5408\u6cd5\u7d44\u5408\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u9032\u884c\u805a\u5408\u64cd\u4f5c\u6642\uff0c\u7576\u6d89\u53ca\u5230\u4e0d\u540c\u7684\u5b57\u7b26\u96c6\u6216\u6821\u5c0d\u6642\uff0cMySQL\u7121\u6cd5\u6b63\u78ba\u8655\u7406\u9019\u4e9b\u6578\u64da\uff0c\u5f9e\u800c\u5c0e\u81f4\u932f\u8aa4\u7684\u7522\u751f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%a0%a1%e5%b0%8d%e5%92%8c%e5%ad%97%e7%ac%a6%e9%9b%86%ef%bc%9f-NVbRRQVRRd\">\u4ec0\u9ebc\u662f\u6821\u5c0d\u548c\u5b57\u7b26\u96c6\uff1f<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u6821\u5c0d\uff08Collation\uff09\u662f\u7528\u4f86\u5b9a\u7fa9\u5982\u4f55\u6bd4\u8f03\u548c\u6392\u5e8f\u5b57\u7b26\u4e32\u7684\u898f\u5247\u3002\u6bcf\u500b\u5b57\u7b26\u96c6\uff08Character Set\uff09\u90fd\u53ef\u4ee5\u6709\u591a\u7a2e\u6821\u5c0d\u3002\u4f8b\u5982\uff0cUTF-8\u5b57\u7b26\u96c6\u53ef\u4ee5\u6709utf8_general_ci\u3001utf8_bin\u7b49\u4e0d\u540c\u7684\u6821\u5c0d\u3002\u7576\u4f60\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u4e0d\u540c\u7684\u5b57\u7b26\u96c6\u6216\u6821\u5c0d\u6642\uff0c\u5c31\u53ef\u80fd\u6703\u51fa\u73fe\u932f\u8aa41267\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-NVbRRQVRRd\">\u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>\u932f\u8aa41267\u901a\u5e38\u51fa\u73fe\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5728\u540c\u4e00\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u4f86\u81ea\u4e0d\u540c\u8868\u7684\u5217\uff0c\u9019\u4e9b\u5217\u7684\u5b57\u7b26\u96c6\u6216\u6821\u5c0d\u4e0d\u4e00\u81f4\u3002<\/li>\n<li>\u5728\u9032\u884c\u805a\u5408\u64cd\u4f5c\uff08\u5982SUM\u3001COUNT\u3001AVG\u7b49\uff09\u6642\uff0c\u6d89\u53ca\u5230\u7684\u5217\u5177\u6709\u4e0d\u540c\u7684\u6821\u5c0d\u3002<\/li>\n<li>\u5728JOIN\u64cd\u4f5c\u4e2d\uff0c\u9023\u63a5\u7684\u8868\u7684\u5217\u4f7f\u7528\u4e86\u4e0d\u540c\u7684\u6821\u5c0d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41267-NVbRRQVRRd\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41267<\/h2>\n<p>\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\u7684\u95dc\u9375\u5728\u65bc\u78ba\u4fdd\u6240\u6709\u6d89\u53ca\u7684\u5217\u4f7f\u7528\u76f8\u540c\u7684\u5b57\u7b26\u96c6\u548c\u6821\u5c0d\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5177\u9ad4\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e5%92%8c%e7%b5%b1%e4%b8%80%e5%ad%97%e7%ac%a6%e9%9b%86%e5%8f%8a%e6%a0%a1%e5%b0%8d-NVbRRQVRRd\">1. \u6aa2\u67e5\u548c\u7d71\u4e00\u5b57\u7b26\u96c6\u53ca\u6821\u5c0d<\/h3>\n<p>\u9996\u5148\uff0c\u4f60\u9700\u8981\u6aa2\u67e5\u76f8\u95dc\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\u53ca\u6821\u5c0d\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u67e5\u770b\u8868\u7684\u5b57\u7b26\u96c6\u548c\u6821\u5c0d\uff1a<\/p>\n<pre><code>SHOW TABLE STATUS LIKE 'your_table_name';<\/code><\/pre>\n<p>\u5982\u679c\u767c\u73fe\u4e0d\u540c\u7684\u5b57\u7b26\u96c6\u6216\u6821\u5c0d\uff0c\u53ef\u4ee5\u4f7f\u7528ALTER TABLE\u8a9e\u53e5\u4f86\u4fee\u6539\u5b83\u5011\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8collate%e5%ad%90%e5%8f%a5-NVbRRQVRRd\">2. \u4f7f\u7528COLLATE\u5b50\u53e5<\/h3>\n<p>\u5982\u679c\u4e0d\u60f3\u66f4\u6539\u8868\u7684\u5b57\u7b26\u96c6\u6216\u6821\u5c0d\uff0c\u53ef\u4ee5\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528COLLATE\u5b50\u53e5\u4f86\u5f37\u5236\u4f7f\u7528\u7279\u5b9a\u7684\u6821\u5c0d\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT column_name1, column_name2 \nFROM your_table \nWHERE column_name1 COLLATE utf8_general_ci = column_name2 COLLATE utf8_general_ci;<\/code><\/pre>\n<h3 id=\"3-%e7%a2%ba%e4%bf%9djoin%e6%93%8d%e4%bd%9c%e7%9a%84%e4%b8%80%e8%87%b4%e6%80%a7-NVbRRQVRRd\">3. \u78ba\u4fddJOIN\u64cd\u4f5c\u7684\u4e00\u81f4\u6027<\/h3>\n<p>\u5728\u9032\u884cJOIN\u64cd\u4f5c\u6642\uff0c\u78ba\u4fdd\u6240\u6709\u53c3\u8207JOIN\u7684\u5217\u4f7f\u7528\u76f8\u540c\u7684\u6821\u5c0d\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT a.column_name, b.column_name \nFROM table_a a \nJOIN table_b b ON a.column_name COLLATE utf8_general_ci = b.column_name COLLATE utf8_general_ci;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NVbRRQVRRd\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41267\u901a\u5e38\u662f\u7531\u65bc\u4e0d\u540c\u7684\u5b57\u7b26\u96c6\u6216\u6821\u5c0d\u5f15\u8d77\u7684\uff0c\u89e3\u6c7a\u9019\u500b\u554f\u984c\u7684\u95dc\u9375\u5728\u65bc\u78ba\u4fdd\u6240\u6709\u76f8\u95dc\u5217\u7684\u4e00\u81f4\u6027\u3002\u901a\u904e\u6aa2\u67e5\u548c\u7d71\u4e00\u5b57\u7b26\u96c6\u53ca\u6821\u5c0d\uff0c\u6216\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528COLLATE\u5b50\u53e5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u9078\u64c7\u5408\u9069\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4e3b\u6a5f\u4f86\u904b\u884cMySQL\u6578\u64da\u5eab\u4e5f\u662f\u4e00\u500b\u91cd\u8981\u7684\u8003\u91cf\u3002\u5e0c\u671b\u9019\u7bc7\u6587\u7ae0\u80fd\u5e6b\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u548c\u89e3\u6c7aMySQL\u932f\u8aa41267\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41267\u7684\u65b9\u6cd5\uff0c\u89e3\u6c7a\u4e0d\u540c\u6821\u5c0d\u5c0e\u81f4\u7684\u805a\u5408\u64cd\u4f5c\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u67e5\u8a62\u7684\u6b63\u78ba\u6027\u8207\u4e00\u81f4\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-177971","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177971","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=177971"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177971\/revisions"}],"predecessor-version":[{"id":177972,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177971\/revisions\/177972"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}