Writing the Correct Query is Important
Making simple mistakes in queries can have far reaching consequences.
2017-01-16
181 reads
Editorials
Backup Data Security
We need better security for our data, especially for our choices in managing data.
2017-01-12
87 reads
2017-01-11
179 reads
SQL Server is Getting More Popular
Today, Steve Jones looks at the popularity of SQL Server, which was named DBMS of 2017.
2017-01-10
142 reads
Changes are Coming to the SQLServerCentral Forums
SQLServerCentral is getting an upgrade, and Steve Jones has a few words.
2017-01-09
142 reads
Keeping up to, and down with, Date
It is foolish to insist on reading only up-to-date books on technology. Nothing beats getting the broad perspective.
2017-01-09
92 reads
2017-01-06
96 reads
2017-01-05
88 reads
Number Security
Numbers are both very useful and also susceptible to all sorts of attacks when their domain is limited. Steve Jones looks at some issues occurring in today's world.
2017-01-04
112 reads
2017-01-03
317 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