One of the more obscure requirements that a developer may find themselves facing is the need to compare a row with its immediate sibling. One such case is when a list of values needs to be processed to produce a moving average or to smooth a sequence of statistical numbers where their order is important. For example, values lying along a time line. The solution is actually quite simple, but not immediately obvious.
What's going on with SQL Server? Quite a few problems with patches reported lately. Steve Jones comments on what he sees happening.
Is SQL Server keeping up with MySQL or is it the other way around. Steve Jones comments on a few of the differences in the platforms.
Continuing on with part 18 of his series, MVP Jacob Sebastian examines building an RSS feed in T-SQL.
When you are trying to pin down the cause of a problem with a SQL Server, there is probably going to come a time when you need to get 'trace' information. If you've ever done that, you'll know how easy it is to get overwhelmed by the detail. Here, Shawn McGehee shows how to get round the problem by capturing trace information on a schedule, filtering the captured information, and monitoring it from a central location.
Steve Jones talks about some research from Dr. Cross, a professor from his alma mater, into social networks and how work gets done in a company.
Steve Jones talks about some research from Dr. Cross, a professor from his alma mater, into social networks and how work gets done in a company.
This article illustrates how to query dynamic management views to find the TOP queries based on average CPU and average I/O.
A note from the editor on our very popular Question of the Day. Learn what it is, how it works, and what you can do to improve it.
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I have 3 instances of a brand new long running query that are executing on a SQL Server 2025 instance. Query store is enabled. One of the queries is killed by the administrator, one is cancelled by the user. The other runs to completion. How many rows are in Query Store for this query?
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