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In a previous Tech Republic column about SQL Server 2005, I showed how you can convert some of your iterative queries (cursors) to set-based operations in order to enhance performance.

You should take this approach in most circumstances, as you'll potentially see performance gains when switching from a looping construct to a set-based construct.

For full explanations of both of these answers, visit plsqlchallenge.com, register or log in, and click the Closed/Taken tab in Play a Quiz.Large updates become much easier to perform when you understand some of the basic principles of database design.An Access database is not a file in the same sense as a Microsoft Office Word 2007 document or a Microsoft Office Power Point 2007 slide deck.Hi everyone, I currently have a stored procedure that takes two input parameters and one REF CURSOR output parameter which I am calling from ASP.Depending upon the values of the two input parameters a REF CURSOR can either be returned or nor returned. IF param1 = 2 /* do something */ ELSE IF param2 = 4 /* Open REF CURSOR for return parameter */ OPEN curs FOR SELECT * FROM temp; END IF; When a REF CURSOR is returned the ASP code is fine and I can display all the records it has within it.I'll take a closer look at each option and explain why it's difficult to pinpoint which is better in terms of performance.

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