Reblog: Slow source? Make your data flow buffers smaller!
Whoa whoah. Aren’t you supposed to increase your data flow buffer size in order to speed up your packages? If...
2015-08-13
800 reads
Koen Verbeeck
Scripts and SSDT-BI 2013
Recently I tried to open a script component in SSDT-BI 2013. I was developing for SSIS 2014, so this means...
2015-08-11
1,040 reads
SSIS Catalog – Path to backup file could not be determined
I was creating an SSIS catalog at a new project, but I was greeted with the following error message when...
2015-08-13 (first published: 2015-08-10)
4,849 reads
SSDT-BI and Visual Studio Online
Recently I had to create a new business intelligence project at a client. However, there was no source control present....
2015-08-07
2,536 reads
Reblog: The OLE DB Source and the Oracle Date Literal
SQLKover update:when of the stranger Oracle issues I encountered over the years. Some time after I published the original blog...
2015-08-06
812 reads
My favourite books
As I mentioned in the blog post Speaking at SQL Server Days 2015, I’ll be giving a session at the...
2015-08-04
628 reads
Reblog: The shaky bug in SSIS
SQLKover update: I’m reblogging this a bit earlier (it’s a quite recent blog post) because I still see people with this...
2015-07-30
1,026 reads
Reblog: Star Schema The Complete Reference – Review
SQLKover update:1.5 year later, I still stand by my position: Star Schema The Complete Reference is the best book on...
2015-07-30 (first published: 2015-07-23)
2,211 reads
Reblog: Creating a Semi-additive Measure over a Parent-child Hierarchy
Originally this blog post would be titled “Disabling aggregations over a parent-child hierarchy”, but I thought it could create confusion with the...
2015-07-16
1,107 reads
Speaking at SQL Server Days 2015
I have the great pleasure to announce I’m speaking for the 5th time at the Belgian SQL Server Days! The...
2015-07-15
660 reads
Blogs
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
The Goldilocks problem – Materialized Views
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
Monday Monitor Tips: Virtual Machine Usage and Cost
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
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...
How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
Question of the Day
Getting the Average
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