SQL Server +0 and -0
This is a very interesting error happened in one of my clients’ databases. Their database has been running for at...
2013-04-30
1,561 reads
john_wong_ca@hotmail.com
SQL Saturday #198 Feb 16, 2013
SQL Saturday 198, http://www.sqlsaturday.com/198/ ; is coming to Vancouver Feb 16 this year. As of now, 56 sessions are collected from...
2013-01-09
820 reads
NULL Values Impact the Performance of MAX() and MIN()
We know that we need to take special attention about NULL values while writing queries because they may lead us into...
2012-12-26
2,322 reads
Inserted and Deleted are One Table?
Inserted and deleted tables are 2 pseudo tables preseting the before and after images of modified rows. They can only...
2012-10-17
2,428 reads
Update with UPDLOCK
Do you think it’s a good idea to add UPDLOCK hint to the table which will be modified in an...
2012-10-10
1,444 reads
Have You Seen This Error?
location: AppendOnlyVerStoreMgr.cpp:776
Expression: 0
SPID: 64
Process ID: 4912
Description: Cannot locate version record and page is not allocated. Status = 3
Msg 3624, Level 20,...
2012-09-10
1,315 reads
Get Dependent Databases, Tables, Columns…
Quite often people need to write a new T-SQL application to replace an existing one for various reasons. For instance,...
2012-07-06 (first published: 2012-06-29)
4,154 reads
Locking Behavior – Foreign Keys
With Snapshot (read committed snapshot and snapshot isolation level) enabled, when data reading on a table takes place, if any...
2012-06-26
2,745 reads
Bug? Can’t Pass TVP to SQL Function Twice
I run into a bug recently with SQL Server 2012. I believe this exists in SQL Server 2008 as well....
2012-06-20
1,090 reads
DBCC WritePage
DBCC WritePage is a dangerous undocumented DBCC command. It’s useful in your sandbox to change data, crash objects, and do...
2011-11-23
2,814 reads
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Forums
Unlocking Data Transformation: My journey with dbt (Data Build Tool) on SQL Server
Comments posted to this topic are about the item Unlocking Data Transformation: My journey...
Putting the Player with the Number
Comments posted to this topic are about the item Putting the Player with the...
Your Security Checkup
Comments posted to this topic are about the item Your Security Checkup, which is...
Question of the Day
Putting the Player with the Number
In SQL Server 2025, what does this return?
DECLARE @player varchar(20) = 'Bo Nix', @num VARCHAR = '10' SELECT @player || @numSee possible answers