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Database Configuration Management for SQL Server

It is not just the rapid and painless testing, deployment and update of databases that requires care in the retention and management of configuration information. Configuration information is also essential for audit, resilience, and support. The range of documentation varies widely with the database and its setting, but the underlying principles remain the same. Without appropriate configuration management, automation is likely to be futile.

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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