Peter Larsson


SQLServerCentral Article

Pivot table for Microsoft SQL Server

One of the seeminly more popular enhancements in SQL Server 2005 to T-SQL is the PIVOT operator. There have been quite a few articles, but new author Peter Larsson decomposes in detail how you can perform this operation with previous versions.

(22)

You rated this post out of 5. Change rating

2007-10-02 (first published: )

76,042 reads

Technical Article

PARSENAME Enhancement

The ParseName function is very useful for getting parts out of a string of characters between delimiters. But a limitiation is that you only can get four parts out, and the function only accepts dots as delimiters.The function I have written below overcomes that limitations, and add a new feature to enable "from left" and […]

You rated this post out of 5. Change rating

2007-08-27 (first published: )

329 reads

Technical Article

CHECKSUM replacement for IMAGE

As we all know, BINARY_CHECKSUM ignores columns of data type IMAGE.This code is 100% compatible with MS original. That is, the result is identical.You can use it "as is", or you can use it to see that MS function does not produce that unique values one could expect.

You rated this post out of 5. Change rating

2007-02-15 (first published: )

206 reads

Technical Article

CHECKSUM replacement for TEXT

As we all know, BINARY_CHECKSUM ignores columns of data type TEXT.This code is 100% compatible with MS original. That is, the result is identical.You can use it "as is", or you can use it to see that MS function does not produce that unique values one could expect.

You rated this post out of 5. Change rating

2007-02-13 (first published: )

188 reads

Technical Article

MIME64 Encoder and Decoder written in T-SSQL

Here is a MIME64 encoder function written entirely in T-SQL!© 2006 Peter Larsson, Developer Workshop, all rights reservedAs long as the copyright notice is visible within the function declarationand you include a note in the documentation of your system that thesefunctions are written by me, you may use these functions for free of charge.If you […]

(1)

You rated this post out of 5. Change rating

2006-11-09 (first published: )

1,076 reads

SQLServerCentral Article

How many more Mondays until I retire?

Depending on your age, you may not want to know this number, but as you advance in your career, this might be a problem that you look to solve one day. Peter Larsson takes a few minutes to work out a function in T-SQL that can be used to solve this or any similar question.

(3)

You rated this post out of 5. Change rating

2006-07-19

14,224 reads

Blogs

AI Helps Me with My Sloppiness

By

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

WITH clause gets a 26ai boost!

By

By way of background, a while back I did video called “My New Favourite...

Automatic Index Compaction

By

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

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