在Linux下部署mysql時，使用group by碰到的問題

mysql使用group by 的時候報錯，錯誤信息如下：

1055:ER_WRONG_FIELD_WITH_GROUP: Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated
column 'lbparking.tradingrecord.pname' which is not functionally dependent on columns in GROUP BY clause;
this is incompatible with sql_mode=only_full_group_by

解決步驟：

一、找到/etc/my.cnf
二、添加如下語句：sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'
三、重新啟動MYSQL服務
service mysqld stop
service mysqld start

備注：上述解決操作在root賬號下進行