November 4, 2008 at 2:14 pm
Hi all,
I had to write two separate queries to get what I want: that is, knowing the branchCode, get the email addresses from another table for two columns. This query gives me the email addresses:
SELECT p.EMail
FROM PEOPLE p
WHERE p.ID IN ('SU00U10', 'SU00TY6')
and this one gives me the ID's:
SELECT ApproverID, AlternatesID
FROM Branches
WHERE branchCode = 'E2'
so I thought I could insert the 2nd statement inside the parenthesis of the first statement, like so:
SELECT p.InternetMailbox
FROM iadb_dev.dbo.tbl_PEOPLE p
WHERE p.UniqueID =
(SELECT ApproverID, AlternatesID
FROM emh.dbo.tblEVBranchesCopy
WHERE branchCode = 'EV1')
but the code above gives error: Msg 116, Level 16, State 1, Line 1
Only one expression can be specified in the select list when the subquery is not introduced with EXISTS. I couldn't get it to work except by writing two queries:
SELECT p.EMail
FROM PEOPLE p
WHERE p.ID =
(SELECT ApproverID FROM Branches WHERE branchCode = 'E2')
SELECT p.EMail
FROM PEOPLE p
WHERE p.ID =
(SELECT AlternatesID FROM Branches WHERE branchCode = 'E2')
It works, but would one query be more efficient and still easy to read? good enough? suggestions?
November 4, 2008 at 2:25 pm
kubio (11/4/2008)
Hi all,I had to write two separate queries to get what I want: that is, knowing the branchCode, get the email addresses from another table for two columns. This query gives me the email addresses:
SELECT p.EMailFROM PEOPLE p
WHERE p.ID IN ('SU00U10', 'SU00TY6')
and this one gives me the ID's:
SELECT ApproverID, AlternatesIDFROM Branches
WHERE branchCode = 'E2'
so I thought I could insert the 2nd statement inside the parenthesis of the first statement, like so:
but the code above gives error: Msg 116, Level 16, State 1, Line 1
Only one expression can be specified in the select list when the subquery is not introduced with EXISTS. I couldn't get it to work except by writing two queries:
SELECT p.EMailFROM PEOPLE p
WHERE p.ID =
(SELECT ApproverID FROM Branches WHERE branchCode = 'E2')
SELECT p.EMail
FROM PEOPLE p
WHERE p.ID =
(SELECT AlternatesID FROM Branches WHERE branchCode = 'E2')
It works, but would one query be more efficient and still easy to read? good enough? suggestions?
How about:
SELECT a.ApproverID, a.AlternatesID
, p.UniqueID , p.InternetMailbox
FROM iadb_dev.dbo.tbl_PEOPLE p
left join emh.dbo.tblEVBranchesCopy a
on (p.UniqueID = a.approverID
or p.UniqueID = a.AlternatesID )
and a.branchCode = 'EV1'
Johan
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November 4, 2008 at 2:42 pm
sure, change and to where and it's perfect
thank you.
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