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I am somewhat uncomfortable blogging this, as I feel that it falls into “Polish a turd” category. Having said that, it is a particularly ugly turd and it does polish up rather well. Though as the saying goes, it is still a turd. The evils and inadequacies...
It’s as simple as that. If you don’t specify ORDER BY, then the order of your result set is not guaranteed. Oh sure , there may be situations where the data looks like it is being returned ordered, but this is not really the case. So, for example : CREATE...
As the saying goes "work smarter, not harder", this is definitely the case for SQL. If you have a poorly performing query, then you are not only affecting that one user but diverting precious machine resources needlessly. This is doubly true...
Sql Server is great at producing and caching efficient query plans. However these plans may not be the most efficient based upon the parameters passed into subsequent calls off a stored procedure. In this article I am assuming that you have read...
Amongst many others, Gail Shaw has blogged on the subject of catch all queries . On many occasions I have needed to do something similar and found performance to be pretty dire on large tables. Typically I would use dynamic SQL to generate the query but...