IN Vs INNER JOIN Here we will do a quick benchmark on using IN vs INNER JOIN. This came about when a coworker had to run a one-off SQL statement to see if approximately 3,500 codes (from a supplied… Continue Reading
LIKE vs SUBSTRING vs LEFT/RIGHT vs CHARINDEX All too often developers need to query a database table for records which begin and/or end with a certain textual pattern. For instance, find all employees where their first name begins with “DAV”.… Continue Reading
Fastest way to insert new records where one doesn’t already exist SQL Developers come across this scenario quite often – having to insert records into a table where a record doesn’t already exist. The age-old technique and I suspect most… Continue Reading
Increase SQL Server tempdb Performance In this article I hope to shed light on some very simple ways to increase SQL Server tempdb performance. As an SQL developer, I’ve spent countless hours doing everything I can to optimize tables and… Continue Reading
Fastest way to compare multiple column values I was recently working on a project with stored procedures that had a significant amount of column comparisons in a MERGE statement. This was turning into a real performance bottleneck (relatively speaking) as… Continue Reading
Optimizing SQL Strategies How many of you have come across SQL code that, for whatever reason, wasn’t written as good as it could have been? I’m not talking about going into the inner workings of your database’s engine and milking… Continue Reading