This script was written to solve a problem where we needed to dynamically create bch files for Veritas Backups direct to tape backups. We needed to parse the sysdatabases daily and create the bch files that veritas would use to backup each server and database. This SQL Script uses xp_cmdshell to call a windows shell […]
2007-10-02 (first published: 2007-06-18)
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For the Question of the day, I am going to go deep, but try to be more clear, as I feel like I didn't give enough info last time, leading folks to guess the wrong answer... :) For today's question: You’re troubleshooting a performance issue on a critical stored procedure. You notice that a previously efficient query now performs a full table scan instead of an index seek. Upon investigating, you find that an NVARCHAR parameter is being compared to a VARCHAR column in the WHERE clause. What is the most likely cause of the query plan regression?
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