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 Huang’s Blog
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
819 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
2,316 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
2,424 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
1,439 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
1,311 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)
4,152 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
2,743 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
1,087 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
2,810 reads
Blogs
Dry-run xp_delete_file Before Actually Deleting Files?
By SQLPals
Dry-run xp_delete_file Before Actually Deleting Files? xp_delete_file doesn’t really have a...
Happy Thanksgiving! (USA Holiday)
By Brian Kelley
In the United States, today is Thanksgiving. The intent behind the holiday is to...
Getting SQL Server 2025 RTM Running in Containers on macOS
SQL Server 2025 RTM is here, and if you’re running Docker on macOS, you...
Forums
Which Object Definitions Are Available?
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T-SQL in SQL Server 2025: The PRODUCT Function
Comments posted to this topic are about the item T-SQL in SQL Server 2025:...
Question of the Day
Which Object Definitions Are Available?
For which of these object types can I get the code when I run the OBJECT_DEFINITION() function in SQL Server 2025? (choose 3)
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