Anyone remember the SQL Slammer virus? It turns out that it attacked SQL Server databases (and SQL Server DBA's) that were not protected by the latest Service Pack. I sit around and scare myself by asking myself questions like, what service pack am I on?
Here is a simple query to tell you what service pack you are on and some other interesting information about your SQL Server instance:
select serverproperty ('servername') [Server Name],
serverproperty ('productversion') [Product Version],
serverproperty ('productlevel') [Product Level],
serverproperty ('edition') Edition,
serverproperty ('licensetype') [License Type],
serverproperty ('numlicenses') [# Licenses]
Of course you have to connect to the server you are interested in before running this query. The Service Pack level will be in the "Product Level" column.