First Impressions
SELECT @@Version
Microsoft SQL Server “Denali” (CTP1) – 11.0.1103.9 (X64)
I’ve been playing with the CTP for a few days (with absolutely no...
2010-11-09
1,419 reads
SQL In The Wild
A Trio of Table Variables
So, it’s the second Tuesday of the month again, and it’s time for T-SQL Tuesday again. This month it’s hosted...
2010-10-12
1,248 reads
One wide index or multiple narrow indexes?
Or “If one index is good, surely many indexes (indexes? indices? indi?) will be better”
This is a question that comes...
2010-09-14
1,557 reads
Come and gone
Or “Plan cache monitoring – insert and remove”
Previously I took a look at the CacheHit and CacheMiss events to see how...
2010-08-31
1,808 reads
Hit and miss
Or “Monitoring plan cache usage”
For people interested in the details of how SQL is using and reusing execution plans, there...
2010-07-27
1,104 reads
Does a missing data file send a database suspect?
Short answer: No
I keep seeing this come up on various forums when people ask what makes a database go suspect...
2010-06-29
2,027 reads
DBA Hell
On the first day of DBA hell, the server gave to me
A database with damaged system tables and no good...
2010-06-15
954 reads
In, Exists and join – a roundup
Over the last several months I’ve had a look at IN, Exists, Join and their opposites to see how they...
2010-04-27
1,336 reads
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
10,778 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
429 reads
Blogs
Migrate datetime data to datetimeoffset with AT TIME ZONE
By Will Assaf
I recently reviewed, worked on, and added a similar example to the DATETIMEOFFSET Microsoft...
The Comprehensive Guide to Mastering Your SQL DBA Skills
Database administrators (DBAs) are the backbone of data-driven organizations. If you're looking to break...
Friday Basics: Authentication vs. Authorization
By Brian Kelley
Another security fundamentals topic is authentication versus authorization. For those who have a clear...
Forums
The OS returned the error '(null)' while attempting 'DeleteFile' filestream.hdr
I have a SQL Server 2019 Enterprise Edition on CU 25. It has in-memory...
Performance
Experts, I am learning some skills so I can troubleshoot some performance-related issues. I...
Question of the Day
Two Table Hints
What happens when I run this code:
SELECT p.ProductName , p.ProductCategory FROM dbo.Product AS p WITH (NOLOCK, TABLOCK);See possible answers