How Old Are Your Database Statistics?
Unlike fine wine, database statistics do not improve with age. I recently helped out with a client who was having...
2010-08-30
10,966 reads
Blog Posts
Join me for Lunch - SQL Lunch #33 (Indicators, Sparklines and Databars)
Join me for Lunch - SQL Lunch #33 (Indicators, Sparklines and Databars)
#33-SSRS 2008 R2 - Indicators, Sparklines and Databars
Speaker: Patrick LeBlanc
Add To...
2010-08-30
1,697 reads
NetFlix and Null
There are some progressive companies out there, and I think they are doing some very interesting things with how they...
2010-08-30
1,568 reads
PASS Update #42
Our most recent board meeting was in Nashville on Aug 19, 20. We had originally discussed meeting in Seattle/Redmond/Vancouver, but...
2010-08-30
971 reads
SQL or MDX query trace in SSRS - trick of imagination or a real thing?
I sometimes have ghost memories - I remember some things that had never in fact happened. And I was wondering if ...
2010-08-30
3,315 reads
Testing for NULLS in a Dataset Filter
Some seemingly simple filtering logic can be more difficult to achieve when using
a dataset filter rather than the WHERE clause...
2010-08-30
621 reads
Upcoming PASS Performance Virtual Chapter Presentation
I’ll be doing an introductory level presentation on statistics for the Performance VC on September 7th, details and the LiveMeeting...
2010-08-30
1,675 reads
Upcoming Presentations: #24HOP & #SQLSAT46
Blogging has been a bit quiet of late. That’s because I’ve been spending a lot my spare time getting ready...
2010-08-30
767 reads
Dynamic SQL and Cached Query Plans
Over the many years that I’ve been dealing with SQL Server, I’ve always been told and read about how using...
2010-08-29
610 reads
MDX Puzzle #7
I have presented you with a couple of easy puzzles in the last few posts. So, let's step it up...
2010-08-29
477 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