Internal Sql Server Error Subquery
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Mysql Error Codes List
company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions mysql error php Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million mysql sqlstate programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Why not “Invalid column name XYZ” error in subquery; although column name is not in subquery table? up vote 7
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down vote favorite 1 When I run this query SELECT CustomerId FROM Stocks.dbo.Suppliers It gives me this error. Invalid column name 'CustomerId'. This error is valid as there is no column CustomerId in Suppliers table; but when I use same query in subquery it does not give any error E.g. SELECT * FROM SomeOtherDb.dbo.Customer WHERE CustomerId In( SELECT CustomerId FROM Stocks.dbo.Suppliers) Here I am expecting same error "Invalid column name" but query runs
Sql State Hy000 Error Code 0
without any error. Fully qualified name is just convention both dbs are on same server. CustomerId does exists in SomeOtherDb.dbo.Customer table but not in subquery. Why is this behavior? Is this something with subquery? Thanks. sql sql-server sql-server-2005 tsql subquery share|improve this question edited Jan 21 '10 at 16:44 OMG Ponies 199k37356416 asked Jan 21 '10 at 15:46 Kashif 6,31494584 Throws the invalid column error on me in either situation. Is the fully qualified name just convention or via a linked server? –Andrew Jan 21 '10 at 15:54 Fully qualified name is just a convention. Both DBs are on same server. –Kashif Jan 21 '10 at 16:00 add a comment| 2 Answers 2 active oldest votes up vote 10 down vote accepted Subqueries inherit columns from outer queries. I guess your SomeOtherDb.dbo.Customer does have a CustomerId column (which also seems likely from the names). Which then also probably means that you are not doing with the subquery what you want to do with it - if the table in the subquery does not have a CustomerId column (and it seems so, otherwise there would be no error when running the subquery in itself), then the subquery selects and returns the outside CustomerId, and since that is the only column in the subquery, the su
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