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Comparing queries

Posted By:      Posted Date: September 21, 2010    Points: 0   Category :Sql Server

How can i compare query X and Y and say that X is better then Y when they both take almost the same time in small cases scenarios???

the problem is that i have 2 queries that are suposed to run on a very big database, so run a evaluate is quite not a option (aka try and fail method), so we created a small database to perform some tests... and now the evaluating wich query is the best is a problem since on our test base they run almost the same time: 5 min so... besides the time taken to return, what is another way to measure how good a query is???

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