usp_TransposeNRows v2.0
Transpose N rows of a table (v2.0 allows user to specify the table's schema)
2014-09-10 (first published: 2010-01-29)
2,022 reads
Transpose N rows of a table (v2.0 allows user to specify the table's schema)
2014-09-10 (first published: 2010-01-29)
2,022 reads
2010-02-05 (first published: 2010-01-18)
1,058 reads
By Rohit Garg
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Comments posted to this topic are about the item Query Plan Regressions --
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?
See possible answers