TSQL Check Database Instance Online

Posted by David in Dakota on Stack Overflow See other posts from Stack Overflow or by David in Dakota
Published on 2010-06-16T15:59:06Z Indexed on 2010/06/16 16:02 UTC
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What is the best way to check if an instance of Microsoft SQL Server is up? I have a view that spans two instances of Microsoft SQL Server but before querying it in a stored procedure I would like to verify that the second instance of the server is up with a fallback option of just querying local data.

The second instance is a linked server.

Currently I'm considering a SQL CLR function that can attempt to open a connection with a shorter timeout but I'm wondering if it's something that can be done directly in Transact SQL.

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