use variable @dbname in a stored procedure


I try to use variable @dbname in a script, the following error is returned :Incorrect syntax near ')'.

declare @dbname as varchar (50)
set @dbname = 'TESTDB'



Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Vitor MontalvãoMSSQL Senior EngineerCommented:
You need to put the full select command into a variable and the execute it:
declare @MySelect as varchar (MAX)
declare @dbname as varchar (50)
 set @dbname = 'TESTDB'

set @MySelect = 'IF NOT EXISTS (SELECT name FROM ['+@dbname+'].sys.indexes WHERE name = '''TECH_IX_DOMAINID_GROUPID_RECORDTYPE''')'


Open in new window

bibi92Author Commented:
Thanks Incorrect syntax near 'TECH_IX_DOMAINID_GROUPID_RECORDTYPE'.
Deepak ChauhanSQL Server DBACommented:
Remove one extra ' from the begin and end of the string like below and start your begin statement before executing the variable in execute command otherwise it will give you error again.


declare @MySelect as varchar (MAX)
declare @dbname as varchar (50)
 set @dbname = 'TESTDB'

set @MySelect = 'IF NOT EXISTS (SELECT name FROM ['+@dbname+'].sys.indexes WHERE name = ''TECH_IX_DOMAINID_GROUPID_RECORDTYPE'') begin ...... end'


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Vitor MontalvãoMSSQL Senior EngineerCommented:
So, all the points going to another Expert just because an extra quote?
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SQL Server

From novice to tech pro — start learning today.