Left outer join vs NOT EXISTS
And to wrap up the miniseries on IN, EXISTS and JOIN, a look at NOT EXISTS and LEFT OUTER JOIN...
2010-03-25
5,209 reads
Gail Shaw
- Interests: Computer Graphics, Aikido, Roleplaying
Left outer join vs NOT EXISTS
And to wrap up the miniseries on IN, EXISTS and JOIN, a look at NOT EXISTS and LEFT OUTER JOIN...
2010-03-23
13,113 reads
The Root of all Evil
Or “Shot gun query tuning”
There have been a fair few forums questions in recent months asking for help in removing...
2010-03-11
459 reads
NOT EXISTS vs NOT IN
Continuing with the mini-series on query operators, I want to have a look at NOT EXISTS and NOT IN.
Just one...
2010-02-18
56,835 reads
Getting here from there
Another month, another blog chain, this time started by Paul Randal. I got tagged by both Grant and Steve, on...
2010-01-21
407 reads
SQL Pass session evaluations
I finally got the last of my PASS Summit session evals and so, like someotherpeople, I thought I’d make them...
2010-01-13
580 reads
IN vs INNER JOIN
Often in forum threads discussing query performance I’ll see people recommending replacing an INNER JOIN with an IN (or recommending...
2010-01-12
21,741 reads
Are trivial plans cached?
It is sometimes said that trivial execution plans are not cached and queries that have such plans are compiled on...
2009-12-08
1,249 reads
The most optimal join type
What’s the best join type for a query? Should we aspire to seeing nested loop joins in all our queries?...
2009-11-24
990 reads
TechEd Online Interview
Back in August at TechEd Africa I did a TechEd Online interview with Frikkie Bosch. Frikkie’s the marketing manager for...
2009-09-30
1,477 reads
Blogs
T-SQL Tuesday #203: Risk and Reward
By Steve Jones
This is timely, as I’m currently on a boat in the Adriatic taking a...
dataMinds Connect 2026 – Slides & Scripts
You can find the slides and SQL scripts for my session “Spice up your...
How to Clear the SSMS Cache (SSMS 21 and Later)
By SQLPals
How to Clear the SSMS Cache (SSMS 21 and Later) Updated...
Forums
Risk Vs Reward, The never ending ROI discussion.
Comments posted to this topic are about the item Risk Vs Reward, The never...
Hyperscale Replicas IV
Comments posted to this topic are about the item Hyperscale Replicas IV
The SQL Server Date Magic: When CAST and CONVERT Keep Your Index Seek
Comments posted to this topic are about the item The SQL Server Date Magic:...
Question of the Day
Hyperscale Replicas IV
In Azure SQL Database Hyperscale Edition, how many geo-replicas can be created?
See possible answers