{"id":177957,"date":"2024-11-08T16:59:26","date_gmt":"2024-11-08T08:59:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177957\/"},"modified":"2024-11-08T16:59:27","modified_gmt":"2024-11-08T08:59:27","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41260-sqlstate-hy000-er_cut_value_group_concat-d%e8%a1%8c%e8%a2%abgroup_concat%e6%88%aa%e6%96%b7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177957\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41260 &#8211; SQLSTATE: HY000 (ER_CUT_VALUE_GROUP_CONCAT) %d\u884c\u88abGROUP_CONCAT\u622a\u65b7"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41260-sqlstate-hy000-er_cut_value_group_concat-d%e8%a1%8c%e8%a2%abgroup_concat%e6%88%aa%e6%96%b7-qBLxlsaQHm\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41260 &#8211; SQLSTATE: HY000 (ER_CUT_VALUE_GROUP_CONCAT) %d\u884c\u88abGROUP_CONCAT\u622a\u65b7<\/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\u8aa41260\uff0c\u8a72\u932f\u8aa4\u7684\u5177\u9ad4\u4fe1\u606f\u70ba\u201cSQLSTATE: HY000 (ER_CUT_VALUE_GROUP_CONCAT) %d\u884c\u88abGROUP_CONCAT\u622a\u65b7\u201d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u767c\u751f\u5728\u4f7f\u7528GROUP_CONCAT\u51fd\u6578\u6642\uff0c\u7576\u8fd4\u56de\u7684\u7d50\u679c\u8d85\u904e\u4e86MySQL\u7684\u9810\u8a2d\u9650\u5236\u6642\uff0c\u5c31\u6703\u5c0e\u81f4\u9019\u500b\u932f\u8aa4\u7684\u51fa\u73fe\u3002<\/p>\n<h2 id=\"group_concat%e5%87%bd%e6%95%b8%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-qBLxlsaQHm\">GROUP_CONCAT\u51fd\u6578\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>GROUP_CONCAT\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u805a\u5408\u51fd\u6578\uff0c\u5141\u8a31\u5c07\u591a\u884c\u6578\u64da\u5408\u4f75\u70ba\u4e00\u884c\uff0c\u4e26\u7528\u6307\u5b9a\u7684\u5206\u9694\u7b26\u5206\u9694\u958b\u4f86\u3002\u9019\u5728\u751f\u6210\u5831\u544a\u6216\u532f\u7e3d\u6578\u64da\u6642\u7279\u5225\u6709\u7528\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u5305\u542b\u7528\u6236\u548c\u4ed6\u5011\u7684\u8a02\u55ae\u7684\u8868\u683c\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528GROUP_CONCAT\u4f86\u7372\u53d6\u6bcf\u500b\u7528\u6236\u7684\u6240\u6709\u8a02\u55aeID\u3002<\/p>\n<pre><code>SELECT user_id, GROUP_CONCAT(order_id SEPARATOR ', ') AS orders\nFROM orders\nGROUP BY user_id;\n<\/code><\/pre>\n<h2 id=\"%e9%8c%af%e8%aa%a41260%e7%9a%84%e5%8e%9f%e5%9b%a0-qBLxlsaQHm\">\u932f\u8aa41260\u7684\u539f\u56e0<\/h2>\n<p>\u7576\u4f7f\u7528GROUP_CONCAT\u51fd\u6578\u6642\uff0cMySQL\u5c0d\u8fd4\u56de\u7684\u5b57\u7b26\u4e32\u9577\u5ea6\u6709\u4e00\u500b\u9810\u8a2d\u7684\u9650\u5236\uff0c\u9019\u500b\u9650\u5236\u901a\u5e38\u662f1024\u500b\u5b57\u7bc0\u3002\u5982\u679c\u5408\u4f75\u7684\u7d50\u679c\u8d85\u904e\u9019\u500b\u9650\u5236\uff0c\u5c31\u6703\u51fa\u73fe\u932f\u8aa41260\u3002\u9019\u610f\u5473\u8457\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u6703\u4e1f\u5931\u90e8\u5206\u6578\u64da\uff0c\u56e0\u70ba\u8fd4\u56de\u7684\u7d50\u679c\u88ab\u622a\u65b7\u4e86\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41260-qBLxlsaQHm\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41260<\/h2>\n<p>\u8981\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u8abf\u6574MySQL\u7684\u7cfb\u7d71\u8b8a\u91cf\u4f86\u589e\u52a0GROUP_CONCAT\u7684\u6700\u5927\u9577\u5ea6\u3002\u5177\u9ad4\u6b65\u9a5f\u5982\u4e0b\uff1a<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f1%ef%bc%9a%e6%aa%a2%e6%9f%a5%e7%95%b6%e5%89%8d%e7%9a%84group_concat%e6%9c%80%e5%a4%a7%e9%95%b7%e5%ba%a6-qBLxlsaQHm\">\u6b65\u9a5f1\uff1a\u6aa2\u67e5\u7576\u524d\u7684GROUP_CONCAT\u6700\u5927\u9577\u5ea6<\/h3>\n<pre><code>SHOW VARIABLES LIKE 'group_concat_max_len';\n<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u5c07\u986f\u793a\u7576\u524d\u7684\u6700\u5927\u9577\u5ea6\u8a2d\u7f6e\u3002\u9ed8\u8a8d\u60c5\u6cc1\u4e0b\uff0c\u9019\u500b\u503c\u901a\u5e38\u662f1024\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f2%ef%bc%9a%e4%bf%ae%e6%94%b9group_concat%e6%9c%80%e5%a4%a7%e9%95%b7%e5%ba%a6-qBLxlsaQHm\">\u6b65\u9a5f2\uff1a\u4fee\u6539GROUP_CONCAT\u6700\u5927\u9577\u5ea6<\/h3>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u589e\u52a0GROUP_CONCAT\u7684\u6700\u5927\u9577\u5ea6\u3002\u4f8b\u5982\uff0c\u5c07\u5176\u8a2d\u7f6e\u70ba4096\uff1a<\/p>\n<pre><code>SET SESSION group_concat_max_len = 4096;\n<\/code><\/pre>\n<p>\u5982\u679c\u60a8\u5e0c\u671b\u9019\u500b\u8a2d\u7f6e\u5728\u6bcf\u6b21\u555f\u52d5MySQL\u670d\u52d9\u6642\u90fd\u80fd\u751f\u6548\uff0c\u53ef\u4ee5\u5728MySQL\u7684\u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u662fmy.cnf\u6216my.ini\uff09\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>[mysqld]\ngroup_concat_max_len = 4096\n<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f3%ef%bc%9a%e9%87%8d%e6%96%b0%e5%9f%b7%e8%a1%8c%e6%9f%a5%e8%a9%a2-qBLxlsaQHm\">\u6b65\u9a5f3\uff1a\u91cd\u65b0\u57f7\u884c\u67e5\u8a62<\/h3>\n<p>\u5728\u4fee\u6539\u4e86GROUP_CONCAT\u7684\u6700\u5927\u9577\u5ea6\u5f8c\uff0c\u60a8\u53ef\u4ee5\u91cd\u65b0\u57f7\u884c\u4e4b\u524d\u7684\u67e5\u8a62\uff0c\u6aa2\u67e5\u662f\u5426\u9084\u6703\u51fa\u73fe\u932f\u8aa41260\u3002\u5982\u679c\u4e00\u5207\u6b63\u5e38\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u7372\u5f97\u5b8c\u6574\u7684\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-qBLxlsaQHm\">\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u4f7f\u7528GROUP_CONCAT\u6642\uff0c\u5efa\u8b70\u60a8\u5b9a\u671f\u6aa2\u67e5\u8fd4\u56de\u7684\u6578\u64da\u91cf\uff0c\u4e26\u6839\u64da\u9700\u8981\u8abf\u6574group_concat_max_len\u7684\u503c\u3002\u6b64\u5916\uff0c\u8003\u616e\u5230\u6027\u80fd\u554f\u984c\uff0c\u61c9\u907f\u514d\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u4f7f\u7528GROUP_CONCAT\uff0c\u56e0\u70ba\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u67e5\u8a62\u8b8a\u6162\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-qBLxlsaQHm\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41260\u901a\u5e38\u662f\u7531\u65bcGROUP_CONCAT\u51fd\u6578\u8fd4\u56de\u7684\u7d50\u679c\u8d85\u904e\u4e86\u9810\u8a2d\u7684\u9577\u5ea6\u9650\u5236\u3002\u901a\u904e\u8abf\u6574group_concat_max_len\u8b8a\u91cf\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u4f7f\u7528GROUP_CONCAT\u51fd\u6578\u4ee5\u53ca\u5982\u4f55\u7ba1\u7406\u5176\u9650\u5236\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41260 (SQLSTATE: HY000) \u7684\u65b9\u6cd5\uff0c\u89e3\u6c7aGROUP_CONCAT\u622a\u65b7\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5b8c\u6574\u6027\u548c\u67e5\u8a62\u6e96\u78ba\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-177957","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177957","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=177957"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177957\/revisions"}],"predecessor-version":[{"id":177958,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177957\/revisions\/177958"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177957"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177957"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177957"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}