The Hibernate ORM and SQL Server
Using an ORM with SQL Server introduces unique challenges. I have listed a few of my experiences, hoping it can help someone.
Using an ORM with SQL Server introduces unique challenges. I have listed a few of my experiences, hoping it can help someone.
Execution plans explain all you need to know about query performance, and how to fine-tune. Sure, you can see them in SSMS, but what if you need to drill into to the important details? What about using DMVs, Extended Events or SET statements to get at the execution plans? To get the best use of execution plans you need to be able to get right information from the right plan at the right time. Robert Sheldon explains how.
SQL Server is growing as a platform and Steve Jones says that DBAs need to learn development skills.
This article will show you how to extract a summary of tables affected by deadlocks.
Microsoft has made a bold change with SQL Server 2016 Service Pack 1 : Many Enterprise features are now available in lower editions. Read on for details.
Learn how to add a sparkline and line chart to your SQL Server 2014 Reporting Services reports.
Is your IT department outdated? There's a prediction that they won't be around in five years. Steve Jones doesn't agree.
There are so many ways of keeping your technical skills and knowledge up-to-date. There are books, articles, conferences, video courses and so on, but nothing beats discussion and debate with professional people in other organisations facing a similar range of technical challenges, some of which you share, and others you maybe haven't yet. PASS is unique in providing just this vital ingredient for database professionals using the Microsoft Data Stack.
Measuring the performance of systems isn't always just CPU, RAM, and Disk IO. Today Steve Jones looks at business based metrics.
By Steve Jones
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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 NULLAll 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