Column Store Index, a new feature in SQL Server 2012, improves performance of data warehouse queries several folds. Arshad Ali shows you how to create column store index, and how to use index query hint to include or exclude a column store index.
2012-10-09
3,471 reads
Recently while working on a project to import data from an Excel worksheet using SSIS, I realized that sometimes the SSIS Package failed even though when there were no changes in the structure/schema of the Excel worksheet. I investigated it and I noticed that the SSIS Package succeeded for some set of files, but for others it failed. I found that the structure/schema of the worksheet from both these sets of Excel files were the same, the data was the only difference. How come just changing the data can make an SSIS Package fail? What actually causes this failure? What can we do to fix it?
2012-10-08
3,887 reads
This guide details high-level performance numbers expected and a set of best practices on getting optimal performance when using Data Quality Services (DQS) in SQL Server 2012 with Cumulative Update 1.
2012-10-05
1,697 reads
Relational Datbases have tables as data structures, not arrays. This makes it tricky and slow to do matrix operations, but it doesn't mean it is impossible to do. Joe gives the Celko Slant on how to go about doing Matrix Math in SQL.
2012-10-04
3,741 reads
I want to backup my SQL Server databases to a folder, but I want to minimize who has access to the folder. In other words, I want to make sure that members of the Windows Local Administrators group don't get to the backups without intentionally trying to bypass the security. How do I do that?
2012-10-02
3,264 reads
There is a lot that can be done to make basic tabular reports more readable, using Microsoft's free Report Builder. Rob Sheldon continues his exploration of the power of this tool by showing how to format various elements within reports
2012-10-01
3,173 reads
Learn how to apply the tracing functionality in Microsoft data access technologies such as ADO.NET 2.0, MDAC 2.82, SQL Server Native Client, and the JDBC driver; and in the SQL Server network protocols and the Microsoft SQL Server database engine.
2012-09-28
2,897 reads
The tSQLt framework is a great way of writing unit tests in the same language as the one being tested, but there are some 'Gotchas' that can catch you out. Dave Green lists a few tips he wished he'd read beforehand.
2012-09-27
2,973 reads
We have a number of SQL Server hosts with multiple SQL Server instances. From time to time we have CPU issues, but we are not sure which instance is causing the issue. How do you find which SQL Server instance is causing CPU pressure on machine with multiple SQL Server instances? Check out this tip for ideas on how to find the correct SQL Server instance which is causing CPU pressure.
2012-09-26
2,968 reads
Meredith Ryan – DBA at the Bell Group –was elected by judges and the SQL Server community as the Exceptional DBA of 2012. So who is Meredith, and how did she become a DBA? What makes her exceptional at her work? Simple-Talk sent Richard Morris to investigate.
2012-09-25
2,510 reads
By Steve Jones
“Don’t aim to have others like you; aim to have them respect you.” –...
Many years ago, before I joined Oracle, I was working on a major modernisation...
If you work with data pipelines, SQL, notebooks, or machine learning models, a Mac...
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
WA:08218154393 Jl. Palmerah Barat No.38 A, RT.2/RW.3, Grogol Utara, Kec. Kebayoran Lama, Kota Jakarta...
WA:08218154393 Jl. RC. Veteran. 9, dan No.9A, RT.9/RW.3, Bintaro, Kec. Pesanggrahan, Kota Jakarta Selatan,...
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