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
13,045 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
451 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
56,702 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
402 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
578 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
21,708 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
1,245 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
986 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
1,475 reads
Blogs
A New Word: Dorgone
By Steve Jones
dorgone– adj. wondering if you could slip away from an event or group conversation...
Tell It Once: Setting Up Claude With Skills and MCP Servers
By ReviewMyDB
Many of us use AI the same way every single day. Open a tab....
SQL Server Transaction Log Forensics: Preserving Evidence During an Incident
By SQLPals
SQL Server Transaction Log Forensics: Preserving Evidence During an Incident SQL...
Forums
Make It Routine
Comments posted to this topic are about the item Make It Routine
Finding Gaps in Sequential Data Using SQL Server
Comments posted to this topic are about the item Finding Gaps in Sequential Data...
Negative and Positive Numbers
Comments posted to this topic are about the item Negative and Positive Numbers
Question of the Day
Negative and Positive Numbers
If I want to know whether a number of negative, positive, or zero, what is the easiest way to get this in T-SQL?
See possible answers