Increasing deadlocks with NoLock
One of my personal pet issues is with inappropriate use of the NOLOCK hint (and read uncommitted) . Don't get me...
2010-04-23
748 reads
Dave Ballantyne
Cross Apply Ambiguity
Cross apply (and outer apply) are a very welcome addition to the TSQL language. However, today after a few hours...
2010-03-26
1,923 reads
Output = MAXDOP 1
It is widely know that data modifications on table variables do not support parallelism, Peter Larsson has a good example...
2010-03-04
558 reads
Cleaning up sys.dm_exec_cached_plans
Following on from my previous post in which I noticed that SQLServer itself was artificially bloating sys.dm_exec_cached_plans, the next obvious...
2010-01-27
1,124 reads
Microsoft – Follow best practices – Part 2
In addition to my previous post, another best practice is to not use NOLOCK and READ UNCOMMITTED transaction isolation level.
Here’s...
2010-01-25
546 reads
Microsoft – Follow best practices!
Best practice is to use parametrized queries to enable plan reuse. Will someone please tell Microsoft this.
Presently dm_exec_cached_plans on...
2010-01-22
1,011 reads
Age calculation with SQL Server
There seem to be many different methods being suggested to calculate an age in SQLServer. Some are quite complex but...
2009-12-08
1,130 reads
Phil Factor Speed Phreak SQL Challenge Number 3
The latest Phil Factor challenge is now active here . The prize has now been increased to $100...(read more)
2009-12-04
428 reads
My first useful powershell script – capturing performance counters
After playing around with powershell a bit, I managed to do something quite useful. There are a multitude of ways...
2009-11-30
1,765 reads
Blogs
Deployment Pipelines in Fabric – What Are They?
By HeyMo0sh
In the realm of software development and content creation, the deployment pipeline serves as...
TempDB Internals – What’s New (SQL Server 2016 to 2022)
By Vinay Thakur
I wrote about TempDB Internals and understand that Tempdb plays very important role on...
Forums
A Quick Restore
Comments posted to this topic are about the item A Quick Restore
Guarding Against SQL Injection at the Database Layer (SQL Server)
Comments posted to this topic are about the item Guarding Against SQL Injection at...
Ola Hallengren Index Optimize Maintenance can we have data compression = page
I have a quick question on Ola Hallengren Index Optimize Maintenance . Do we...
Question of the Day
A Quick Restore
While doing some testing of an application, I wanted to reset my environment after doing some testing with this code:
USE DNRTest BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO /* Bunch of stuff tested here */RESTORE DATABASE DNRTest FROM DISK = 'dnrtest.bak' WITH REPLACEWhat happens if this runs, assuming the "bunch of stuff" isn't anything affecting the instance. See possible answers