我有下表,我必须从中获取非唯一行
+------+------+------+
| id | idA |infos |
+----- +------+------+
| 0 | 201 | 1899 |
| 1 | 205 | 1955 |
| 2 | 207 | 1955 |
| 3 | 201 | 1959 |
+------+------+------+
我想获取列的所有行infos,它们idA在至少两行中具有相同的值.
必须输出上表的查询
infos
1899
1959
我尝试了以下请求但没有成功:
SELECT idA FROM XXX WHERE NOT EXISTS(SELECT * FROM XXX GROUP BY idA)SELECT * FROM XXX a WHERE NOT EXISTS(SELECT * FROM XXX b WHERE a.RVT_ID=b.RVT_ID GROUP BY idA)