part2 inner join 숙제 진행중
Error occurred during SQL query execution
이유:
SQL Error [1055] [42000]: Expression #1 of SELECT list is not in GROUP BY
clause and contains nonaggregated column 'homework.s.고객번호' which is
not functionally dependent on columns in GROUP BY clause; this is incompatible
with sql_mode=only_full_group_by
여기서 구글링해서 only_full_group_by를 비활성화하긴 했는데,
문제되는게 있을까요?
