QUESTION POSED ON: 29 December 2005 A query gets executed within seconds when run from the SQL Server client. However, the very same query takes up to 50 seconds when my application executes it. The application uses an XA datasource and the query shows up as an RPC call in the SQL Profiler. What's up with that?
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Whenever I see 40 or 50 second delays, it suggests name resolution problems on the network, particularly if this happens when the database hasn't been accessed for a few minutes. The default DNS resolution normally times out after about 40 seconds and then tries to resolve the name via broadcast. After that, it's cached for a little while and seems to work fine.
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