mysql: Syntax error or access violation: 1055 Expression #2 of SELECT (错误解决办法)
2021/8/13 19:36:11
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SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'seo.ryc_combo_class_cate_list_113.fid' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'seo.ryc_combo_class_cate_list_113.fid' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
错误原因:
这个错误发生在mysql 5.7 版本及以上版本会出现的问题,在mysql5.7版本默认的sql配置是:sql_mode="ONLY_FULL_GROUP_BY",这个配置严格执行了"SQL92标准",很多从5.6升级到5.7时,为了语法兼容,大部分都会选择调整sql_mode,使其保持跟5.6一致,为了尽量兼容程序
解决方法:
找到数据库配置文件windows中my.ini文件或linux中的my.cnf文件,在mysqld中增加sql_mode=
修改之后重新启动mysql即可
[mysqld] sql_mode=
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