Jeff Moden (11/21/2012)
dwain.c (11/21/2012)
Would this work?
DECLARE @DB VARCHAR(100) = 'MyDB'
SELECT *
FROM @DB.sys.check_constraints
If not, why would it work in dynamic SQL?
Obviously, you've found an approach that does work though.
I haven't fired up 2k12 yet but I'd just bet that won't work. You can use variables for object names like that.
The @ck thing being used in the queries is a pass through variable which is a trait of using sp_Execute SQL. Notice that where it's being used is not an object but acts just like what a variable would do in a norma query.
Did you mean "You cannot use variables for object names like that." ?
I know. But wouldn't it be cool if you could. Think about it - naming columns on the fly! God what we could do with that to confuse the masses! :w00t:
My thought question: Have you ever been told that your query runs too fast?
My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.
Need to UNPIVOT? Why not CROSS APPLY VALUES instead?[/url]
Since random numbers are too important to be left to chance, let's generate some![/url]
Learn to understand recursive CTEs by example.[/url]
[url url=http://www.sqlservercentral.com/articles/St