-- 查询表的某个字段数据重复的所有数据:table-表,a-重复字段
mysql> select * from table WHERE a in ( select a from table group by a having count(a)>1)
注释
:table-表,a-重复字段
-- 查询表的某个字段数据重复的所有数据:table-表,a-重复字段
mysql> select * from table WHERE a in ( select a from table group by a having count(a)>1)
注释
:table-表,a-重复字段