Articles

External Article

Check SQL Server Virtual Log Files Using PowerShell

In a previous tip on Monitor Your SQL Server Virtual Log Files with Policy Based Management, we have seen how we can use Policy Based Management to monitor the number of virtual log files (VLFs) in our SQL Server databases. However, even with that most of the solutions I see online involve the creation of temporary tables and/or a combination of using cursors to get the total number of VLFs in a transaction log file. Is there a much easier solution?

2012-10-11

3,321 reads

Technical Article

Improve Your Database Unit Testing Skills and Win Free Stuff

As the SQL Developer community grows to embrace the benefits of test-driven development for databases, so the importance of learning to do it properly increases. One way of learning effective TDD is by the use of code kata – short practice sessions that encourage test-first development in baby steps. I have a limited number of licences for SQL Test to give away free – just for practicing a bit of TDD and telling me about it.

2012-10-10 (first published: )

5,923 reads

External Article

Webinar: Temporary Tables in Oracle and SQL Server

Once again Jonathan Lewis (Oracle Ace Director, OakTable Network) and Grant Fritchey (Microsoft SQL Server MVP) will host a live discussion on Oracle and SQL Server, this time in relation to temporary tables. Will they agree on some common ground? Or will it be an out and out argument? Either way, be prepared for a lively exchange that will not only entertain, but will teach you key concepts on Oracle and SQL Server.

2012-10-10 (first published: )

7,268 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