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Refering an Alias

Author

Topic

evanburen
Posting Yak Master

167 Posts

Posted - 2005-12-02 : 11:03:40

Hello - I don't understand why I'm getting this error message. Thanks.

Server: Msg 207, Level 16, State 3, Line 1
Invalid column name 'DirName'.

SELECT TCompanies.Ticker, TCompanies.Industry,
(TDirectors.DirFName + ' ' + TDirectors.DirLName) As DirName,
TDirectors.IDDir, TDirectorships.DirStatus
FROM TCompanies INNER JOIN TDirectorships ON TCompanies.Ticker = TDirectorships.Ticker
INNER JOIN TDirectors ON TDirectorships.IDDir = TDirectors.IDDir
WHERE (TDirectors.DirFName LIKE 'richard brown%')
OR (TDirectors.DirLName LIKE 'richard brown%')
OR (DirName LIKE '%richard brown%')

spirit1
Cybernetic Yak Master

11752 Posts

Posted - 2005-12-02 : 11:10:30

you can't reference an alias column in a where.
you can do:
select * from
(
SELECT TCompanies.Ticker, TCompanies.Industry,
(TDirectors.DirFName + ' ' + TDirectors.DirLName) As DirName,
TDirectors.IDDir, TDirectorships.DirStatus
FROM TCompanies INNER JOIN TDirectorships ON TCompanies.Ticker = TDirectorships.Ticker
INNER JOIN TDirectors ON TDirectorships.IDDir = TDirectors.IDDir
WHERE (TDirectors.DirFName LIKE 'richard brown%')
OR (TDirectors.DirLName LIKE 'richard brown%')
) t
where (DirName LIKE '%richard brown%')

Go with the flow & have fun! Else fight the flow

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2005-12-03 : 02:09:19

or use the same columns in place of DirName

SELECT TCompanies.Ticker, TCompanies.Industry,
(TDirectors.DirFName + ' ' + TDirectors.DirLName) As DirName,
TDirectors.IDDir, TDirectorships.DirStatus
FROM TCompanies INNER JOIN TDirectorships ON TCompanies.Ticker = TDirectorships.Ticker
INNER JOIN TDirectors ON TDirectorships.IDDir = TDirectors.IDDir
WHERE (TDirectors.DirFName LIKE 'richard brown%')
OR (TDirectors.DirLName LIKE 'richard brown%')
OR (TDirectors.DirFName + ' ' + TDirectors.DirLName LIKE '%richard brown%')

Madhivanan

Failing to plan is Planning to fail

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