In aggregated query without GROUP BY, this is incompatible with sql_mode=only_full_group_by
解决办法:1.直接执行如下sql(但是重启mysql服务后,需要再次执行)SET@@sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION';2.修改mysql配置文件linux:vim/etc/m