In my last blog post:  http://sqlblog.com/blogs/andrew_kelly/archive/2008/02/27/when-getdate-is-not-a-constant.aspx I mentioned that I ran across a situation in which GETDATE() used in a SELECT statement occasionally returned more than 1 value for the result set. That sparked quite a debate amongst SQL Server programmers who belonged to ...

    I am still amazed at how many of the database applications written today still disregard some basic rules of thumb when it comes to accessing the data. One in particular is the use of COUNT(*) to check to see if there are any rows that match some criteria. The technique of using EXISTS over COUNT(*) has been widely publicized ...