MSSQL数据库获取不具有特定的状态

Question

我有记录的数据库有3个表：

报警

ID   Message 
------------------- 
1   Server01 Down 
2   Switch01 Port 2 down 
3   Webserver Down 

ListAlarmStates

ID  StateName 
------------------ 
1  Raised 
2  RaisedNotified 
3  Cleared 
4  ClearedNotified 
5  ForceClear 

AlarmStates

ID  AlarmId  ListAlarmStatesId 
----------------------------------------- 
1  1    1 
2  1    2 
3  1    3 
4  1    4 
5  2    1 
6  2    5 
7  3    1 

现在我想知道所有报警t帽子没有状态ClearedNotified但状态清除（状态清除，我可以在代码中捕获）

在此先感谢！

Answer 1

SELECT AlarmId FROM 
AlarmStates AS 
INNER JOIN Alarm A 
ON (AS.AlarmID = A.ID) 
INNER JOIN ListAlarmStates LA 
ON (AS.ListAlarmStatesId = LA.ID) 
GROUP BY AS.AlarmID 
HAVING COUNT(CASE WHEN LA.StateName = 'ClearedNotified' THEN 1 ELSE NULL END) = 0 
    AND COUNT(CASE WHEN LA.StateName = 'Cleared' THEN 1 ELSE NULL END) > 0)