SQLServerCentral Editorial

Swallowing the Camel

There is a paradox in the nature of the abstractions that many developers want when dealing with databases. They will strain at the gnat, but swallow a camel (Matthew 23:24). Whereas they will recoil with horror when a DBA suggests that an abstraction layer based on views, functions and procedures in a separate database schema […]

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Survey: Using Online Accounts

Using online accounts for license management has some advantages, Red Gate is researching how to implement this for our tools in a way that improves the experience for all involved. To say thank you for your participation, there's a chance to win a $25 Amazon certificate.

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Continuous Integration and automatic builds are fantastic tools for software teams, but only if developers take responsibility for their code. Karsten Kempe explains how to use Team Foundation Server to drive better continuous integration, and walks through a simple open-source tool he built to make nightly builds more transparent, and more valuable.

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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