STRING_AG

Blogs

Automatic Index Compaction

By

Index maintenance has always meant nightly jobs and a window you have to defend....

The Goldilocks problem – Materialized Views

By

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

One of the things I’ve been requesting for a number of years is cost...

Read the latest Blogs

Forums

SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About

By Terry Jago

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

By Chandan Shukla

Comments posted to this topic are about the item How We Handled a Vendor...

Cognitive Coverage

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Cognitive Coverage

Visit the forum

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       NULL
All 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