David Poole

David Poole has been developing business applications since the days of the
Commodore Pet.

Those were the days when 8K was called RAM not KEYBOARD BUFFER.

He now works as Data Solutions Architect at Moneysupermarket
  • Interests: Badminton, Cycling and Music. Keen piano player.

Technical Article

To find the next available ID

There are times when you have a limited range of ids and these have to be re-used as they become available.The script lists the first missing id in a table.Note that this script works best for a table with a limited number of rows, say sub 100,000I tested this on a PIII 500MHz 256Mb RAM […]

You rated this post out of 5. Change rating

2002-12-09

289 reads

SQLServerCentral Article

Querying XML files using SQL 2000

One of the many useful features gained by SQL Server 2000 is the ability to handle XML documents. This means that any computer language capable of opening an XML files and calling SQL Server stored procedures can make use of this new ability. This article by David Poole shows you how!

(1)

You rated this post out of 5. Change rating

2002-10-11

12,029 reads

Technical Article

Function to return a delimited list as a table

This SQL2000 function accepts a delimited list of values as a string and the character you want to use as a delimiter.The function then splits these out and returns them as a table.The function assumes that the input string will contain unique integer values.Useage: -  SELECT Id FROM fnSplit('1,2,3,4' , ',')

You rated this post out of 5. Change rating

2002-06-27

590 reads

Technical Article

Loop through records without using a cursor

I sometimes have to loop through records in a database and perform a specific action on the value that is returned. For example, In the script below I loop through the user tables in sysobjects and simply print them out. This technique is useful when dropping all indices/triggers on a particular table, or adding WITH […]

(2)

You rated this post out of 5. Change rating

2001-11-25

9,192 reads

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