Years ago, my first go-to tool for performance tuning was Performance Monitor: it was available everywhere, worked in all versions, and gave me a lot of useful information without paying for a monitoring tool. Since then, I’ve moved on – wait stats are a much better starting point – but there are still 3 good Perfmon counters that I rely on.
Backblaze releases their new hard drive stats and there are some interesting items in the report.
Although computed columns are from the beginning of SQL Server, not everyone knows how to use them. This article will help you better understand how it works.
In this tip we look at some things you should think about when planning for a SQL Server data warehouse.
It's not the zero'th time Phil Factor has complained about the madness of a binary collation.
A minor disaster for Steve reveals some cracks in his pre-DR planning.
Whether or not to have NULLable columns in a table can be a religious debate, and how missing data is represented should be carefully considered during database design. In this article, Joe Celko considers the ways that SQL Server handles NULLs in several situations.
There is more to our lives than work, and Steve asks that we learn more about other parts of life.
Using R integration for analyzing sales data in WideWorldImporters database
Wait! Before you install that next SQL Server, hold up. Are you sure you’re using the right version?
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
By way of background, a while back I did video called “My New Favourite...
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
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Comments posted to this topic are about the item Cognitive Coverage
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