Frequently surveys ask yes/no questions and use a bit datatype. What are the effects of allowing this column to be NULL in a SQL Server table? Check out this tip to learn more.
2012-01-05
4,275 reads
With the release of Master Data Services (MDS) for SQL Server 2008R2, it is now possible to perform XML transformations on the database server.
2012-01-04
7,793 reads
Microsoft SQL Server is able to create very efficient query plans in most cases. However, there are certain query patterns that can cause problems for the query optimizer; this article describes four of these patterns.
2012-01-04
5,357 reads
A great article that should answer all your questions about the transaction log from MVP Gail Shaw. A must read for all DBAs.
2012-01-03 (first published: 2008-10-31)
73,323 reads
2012-01-03 (first published: 2010-06-16)
9,173 reads
The XML Data type has definite uses, but the way of interrogating, retrieving, and manipulating the values of properties and attributes within XML have been so foreign to the SQL language as to be somewhat of a barrier to their use. Fortunately, Robert Sheldon has once more managed to make the subject accessible to those of us who just need to get the job done.
2012-01-03
3,706 reads
Learn how to get setup with PowerShell and SQLPSX from MVP Aaron Nelson, one of the experts teaching us how to use Powershell for SQL Server.
2012-01-02 (first published: 2011-05-10)
15,850 reads
The SQL Server Luxembourg User Group will be holding its first major event of 2012 on Tuesday 17th January, starting at 4:30pm. The venue will be Microsoft's offices at Cloche d'Or.
2012-01-02
345 reads
Is there an easy/automated way to get information on SQL Server Agent jobs instead of connecting to each server and manually getting the information through the SSMS GUI?
2012-01-02
3,521 reads
Deploying changes to your environments can be challenging, especially when you have multiple script files. Sadequl Hussain brings us a technique that works well and handles mutliple files.
2011-12-30 (first published: 2009-07-30)
51,477 reads
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
By way of background, a while back I did video called “My New Favourite...
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
Comments posted to this topic are about the item How We Handled a Vendor...
Comments posted to this topic are about the item Cognitive Coverage
I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers