SQL Server maintenance plans have been around since SQL Server 2000, but they've always been met with mixed reviews. This is in part because of their reputation for taking a sledgehammer approach to ...
What exactly does 1 unit of cost represent in SQL Query Analyzer execution plans? [ie: Subtree Cost: 41.2134] Obviously it is some form of measurement since a very simple "select @@version" is like ...
I'm not sure it really is actually estimated because as far as I know the only way it can show you what the query plan is is by executing it. So then it really isn't an estimate. I'm sure I'm totally ...
This chapter excerpt on Parallel SQL (download PDF) is taken from the book Oracle Performance Survival Guide: A Systematic Approach to Database Optimization. Get pertinent information on optimizing ...
An update to the cardinality estimator feature in SQL Server 2022 will be one of the biggest changes to the database engine since its inception. Database engines like SQL Server are incredibly complex ...
A popular performance tuning book gets updated for SQL Server 2022, how does it fare? This well-liked SQL Server book examines performance from various angles, but concentrates on improvements related ...
A popular performance tuning book gets updated for SQL Server 2025, how does it fare? Ian Stirk takes and in depth look and finds it pretty good. This well-liked SQL Server book examines performance ...
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