SQL Server-来自嵌入式的联接值不在查询中

Question

I have the following query -

select a.applicationName 'Application Name', ug.shortName 'ITAM Owner', d.dbName 'Database Name', s.serverName 'Database Server Name' from tblApplications a
inner join tblUserGroups ug on ug.groupId = a.recordOwnerId
inner join tblApplicationDatabaseLinks adl on adl.applicationId = a.applicationId
inner join tblDatabases d on d.dbId = adl.dbId
inner join tblServers s on s.serverId = d.serverId
where a.applicationName = 'AppABC' and s.serverId not in (
select s.serverId from tblApplications a
inner join tblApplicationServerLinks asl on asl.applicationId = a.applicationId
inner join tblServers s on s.serverId = asl.serverId
where a.applicationName = 'AppABC')

It works fine on a one to one basis but I want to run it globally.

How do I effectively join the a.applicationName from the parent query to the a.applicationName from the subquery?

I want it to look something like this:

select a.applicationName 'Application Name', ug.shortName 'ITAM Owner', d.dbName 'Database Name', s.serverName 'Database Server Name' from tblApplications a
inner join tblUserGroups ug on ug.groupId = a.recordOwnerId
inner join tblApplicationDatabaseLinks adl on adl.applicationId = a.applicationId
inner join tblDatabases d on d.dbId = adl.dbId
inner join tblServers s on s.serverId = d.serverId
where s.serverId not in (
select s.serverId from tblApplications a
inner join tblApplicationServerLinks asl on asl.applicationId = a.applicationId
inner join tblServers s on s.serverId = asl.serverId)

Which doesn't work because it's not knowing that the a.applicationId should match eachother.

Answer 1

Don't give the Applications table the same alias in both the subquery and the outer query. Instead of a , call one of them a1 or something like that.

Then you can correlate the subquery to the outer query with the two different aliases.

Answer 2

Answer was provided from the comments by @JoeC but for anyone else here is what I had to do:

select ao.applicationName 'Application Name', ug.shortName 'ITAM Owner', d.dbName 'Database Name', s.serverName 'Database Server Name' from tblApplications ao
inner join tblUserGroups ug on ug.groupId = ao.recordOwnerId
inner join tblApplicationDatabaseLinks adl on adl.applicationId = ao.applicationId
inner join tblDatabases d on d.dbId = adl.dbId
inner join tblServers s on s.serverId = d.serverId
where s.serverId not in (
select s.serverId from tblApplications ai
inner join tblApplicationServerLinks asl on asl.applicationId = ai.applicationId
inner join tblServers s on s.serverId = asl.serverId
where ai.applicationId = ao.applicationId)
order by ao.applicationName asc

Answer 3

You can use a join or exists instead of the in clause. weblogs.sqlteam.com/mladenp/archive/2007/05/18/60210.aspx