选择行而不使用＆＃39;不在＆＃39;条款

Question

我有一张这样的表：

+----+----------+
| ID |    WA    |
+----+----------+
|124 | benefit  |
|124 | ordane   |
|124 | military |
|124 | para     |
|125 | benefit  |
|126 | benefit  |
|126 | ordane   |
|127 | benefit  |
|127 | ordane   |
|127 | military |
|128 | benefit  |
+----+----------+

我希望这些ID与WA =＆＃39;有益的＆＃39;并使用WA =＆＃39; ordane＆＃39;排除这些ID。我想避免not in，not exists和except。我尝试了CASE声明，但没有得到它。还有其他方法吗？谢谢！

Answer 1

只需使用HAVING

进行后期聚合过滤

SELECT id FROM t GROUP BY id 
HAVING SUM(CASE WHEN WA='benefit' THEN 1 ELSE 0 END)>0
AND SUM(CASE WHEN WA='ordane' THEN 1 ELSE 0 END)=0