Tony Davis

  • Interests: football, modern literature, real ale

Tribal SQL eBook Download

TribalSQL: 15 New Voices in SQL Server

MidnightDBA and Red Gate have joined together to produce a new book on SQL Server, written by 15 first-time authors. The resulting book, TribalSQL, includes everything you should know about SQL Server that isn’t taught in traditional training, they call it Tribal knowledge.

You rated this post out of 5. Change rating

2019-03-26 (first published: )

451 reads

Technical Article

SQL Server Crib Sheet Compendium

As a developer, DBA or manager, you may not really want to know all about XML, replication or Reporting Services, but if your next project uses one or more of these technologies heavily then the best place to start is with the 'jungle roof' view of each topic that this Crib Sheet compendium provides.

2009-02-10

12,270 reads

Blogs

AI Helps Me with My Sloppiness

By

I type fairly well. Well, I type fast, but I do wear out a...

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...

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