在使用GROUP BY对Mysql的数据表进行查询时如果出现以下错误ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause
and contains nonaggregated column 'player.song_sheet.type' which is n...
Mysql解决SELECT list is not in GROUP BY clause and contains nonaggregated column this is incompatible with sql_mode=only_full_group_by 问题
4