Distincting an IN subquery
This is going to be a quick one…
I keep seeing forum code (and production code) that includes the DISTINCT in...
ERROR_PROCEDURE Does Not Return a Schema Name
"A recent blog entry I read reminded me again that I wanted to rant about an issue in SQL Server for quite some time now. SQL Server 2005 introduced the separation between user and schema. Though schemata already existed before SQL Server 2005, they really became usable with this version, imho. At the same time TRY...CATCH was a new way for structured error handling introduced. And so it finally became possible…"
31 Days of SSIS – SQL Server Configuration (18/31)
31 Days of SSIS
The last post in the 31 Days of SSIS talked about the use of environmental variables. As...
How to Speed up MS SQL Reporting Services on First Run
I set up a new instance of MS SQL Server Reporting Services, but I noticed that it starts up very slow and I have to wait for ages to access the site. I also noticed that it is always slow when it has not been used for a certain period of time.
Read from the Right End of the Index: BACKWARD Scans
Optimizing queries is the most fun when you don’t need to add indexes. There’s nothing quite so nice as finding...
Help Us Help You
SQLServerCentral has a new place for discussions and Steve Jones hopes you use it. It's a forum built for critiquing and discussion the presentations that the SQL Server community shares with each other.
Is hyper-threading still relevant for SQL Server?
There still seems to be a lot of fear, uncertainty and doubt, in the community, with regard to use of Hyper-threading (HT) with SQL Server workloads. So, how and when should it be used?
TSQL Challenge 48 - Parse and evaluate Arithmetic Expressions using TS
This challenge is to parse and evaluate arithmetic expressions using TSQL.
Another Example of CPU Throttling Due to Balanced Power Plan in Windows Server 2008 R2
Here is another example CPU throttling from someone who had a server running with the default “Balanced” Power Plan in...
Blogs
Advice I Like: Respect
By Steve Jones
“Don’t aim to have others like you; aim to have them respect you.” –...
Blue Sky Programming – The Optimism Trap
Many years ago, before I joined Oracle, I was working on a major modernisation...
Setting Up a Mac for Data Engineering and AI Work
If you work with data pipelines, SQL, notebooks, or machine learning models, a Mac...
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
ALAMAT BCA KCP Palmerah Tlp:08218154393
WA:08218154393 Jl. Palmerah Barat No.38 A, RT.2/RW.3, Grogol Utara, Kec. Kebayoran Lama, Kota Jakarta...
ALAMAT KONTAK BCA KCP Bintaro Tlp:08218154393
WA:08218154393 Jl. RC. Veteran. 9, dan No.9A, RT.9/RW.3, Bintaro, Kec. Pesanggrahan, Kota Jakarta Selatan,...
Question of the Day
BIT_COUNT I
In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 3;See possible answers