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The Skill Set of the Exceptional DBA

In my previous editorial on this topic, I stated that the An Exceptional DBA is defined more by what they do than what they know. Judging by the responses, there is little disputing this fact among DBW readers. However, before we accept technical knowledge as a "given", and move on, I'd like to consider the […]

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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