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External Article

Azure Cosmos DB Partitioning

One of the most important design decisions that must be made when planning deployment of Azure Cosmos DB involves logical partitioning of data that will populate target collections, graphs, or tables. Selecting the optimal partitioning model has both performance and pricing implications. In this article, we will explore the rationale behind these implications and review the partitioning options.

2018-03-08

2,357 reads

External Article

How to Survive as a Lone DBA

Database administrators have enormous responsibility whether they manage one or hundreds of servers. Monica Rathbun tells us how she survived as the Lone DBA for 56 database servers for over a decade. While many DBAs work on teams instead of alone, she has great advice for all.

2018-02-27

4,567 reads

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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