12 Ways To Rewrite SQL Queries for Better Performance
Bert Wagner summarizes 12 techniques he's learned over time, from trial and error, for rewriting queries to improve performance.
2019-05-31
Query performance
SQL Server Plan Cache Limits
Erin Stellato explains the limits on both plan cache size, and number of entries. If you’re seeing plan cache bloat due to an ad hoc workload, take note of the space consumed by your plan cache and consider enabling the optimize for ad hoc setting.
2019-05-31
Scalar Functions with Query Plans: Not all is obvious!
Scalar functions in Query Plans just don't always show the whole story!
2018-06-04
924 reads
Monitor Query Performance Using Query Store in SQL Server
The Query Store captures a history of queries, execution plans, and runtime statistics, which persist within SQL Server and can be reviewed later.
2018-04-12
4,214 reads
Techniques For Improving SQL Query Performance - Indexing, Parameterization and Partitioning
You are tasked with examining poor performance for queries on a certain table, or range of tables. Perhaps a sales report is timing out or running unacceptably slow; perhaps your web application is failing to return the result set before the application timeout is reached. You need to find out what's causing the bottleneck, and optimize either the queries used, the table schemata, or both.
2013-09-06
6,400 reads
Blogs
Programmatic Tool Calling with the Claude SDK
Programmatic Tool Calling with the Claude SDK Every morning somebody on the team runs the...
A New Word: Mauerbauertraurigkeit
By Steve Jones
mauerbauertraurigkeit – n. inexplicable urge to push people away, even close friends whose company...
Methodology for dealing with bad data in production
By Brian Kelley
Pinal Dave wrote up his methodology for what to do when you discover bad...
Forums
Why SQL Server Database Attach fails and how to repair it
Comments posted to this topic are about the item Why SQL Server Database Attach...
Fixing P1 Queries
Comments posted to this topic are about the item Fixing P1 Queries
Question of the Day
BIT_COUNT() IV
In SQL Server 2025, I run this code:
select bit_count('A')
What is returned? See possible answers