sql_mode=only_full_group_by問題解決

數據庫分組查詢報錯：

1 Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'fortress.PartnerSetting.Id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by SQL.sql 3 16 

數據庫腳本：        

select
        DISTINCT(AppId),
               Id,
               MchId,
               CompanyId,
               PartnerSettingName,
               Provider,
               ReturnUrl,
               NotifyUrl,
               RefundNotifyUrl,
               Status
               from PartnerSetting
               where status = 0 GROUP BY AppId;

解決辦法：

1.查詢sql_model腳本：

SELECT @@sql_mode;

查詢出來的是：

ONLY_FULL_GROUP_BY,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sql_model

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';

可以再次查詢sql_model，看是否去掉了

ONLY_FULL_GROUP_BY