sql server connect: Using a variable to access a database -- sql server connect

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Using a variable to access a database

J_Jones
8/29/2006 11:04:02 AM

sql server connect: I would like to be able to perform a query
where the database to query is a parameter.
Can this be accomplished? I have tried various methods but none seem to work.

Re: Using a variable to access a database

Arnie Rowland
8/29/2006 11:19:52 AM

You will need to use dynamic SQL. See Erlund's article at:

Dynamic SQL
http://www.sommarskog.se/dynamic_sql.html

--
Arnie Rowland, Ph.D.
Westwood Consulting, Inc

Most good judgment comes from experience.
Most experience comes from bad judgment.
- Anonymous

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Re: Using a variable to access a database

Hari Prasad
8/29/2006 7:52:31 PM

Hi,

You need to use dynamic SQL execution either using EXEC or sp_executesql

Some thing like:-

declare @sql varchar(100)
declare @db varchar (10)
set @db='DBNAME'
set @sql ='select * from [ '+@db+'].dbo.tablename'
print @sql
exec(@sql)

Thanks
Hari
SQL Server MVP

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