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Editorial Team
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Asked: 2026-05-18T00:52:52+00:00

I was getting some timeouts on my app when I was trying to call

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I was getting some timeouts on my app when I was trying to call a specific stored procedure. I isolated it down to a specific sproc and found that when I call a tablevalued function in that sproc with a parameter it takes forever to run. But if I pass in a specific value (like 804) it will return quickly.

If I run it by itself with the parameter it runs fine, but when I add it back into the query with the parameter it runs forever….then swap out the param with a static value and it runs quickly?

Steps I have taken:

  1. Dropped procedure and recreated.
  2. Ran DBCC FREEPROCCACHE on all plans containing a similar query string.
  3. Just a test db so I restored the db with last nights backup.

Another thing to note. On another db on the same server…about the same amount of data it runs fine……very strange.

What am I overlooking? I really don’t get it.

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1 Answer

  1. Editorial Team

    Parameter sniffing?

    Sorry for the short answer, but worth reading some answers…

    From me previously too

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