This article is focused on beginners who have already started writing SQL queries and are now diving deep towards more data processing and complex queries in SQL. When we talk about data processing, an important concept that comes to our mind is performing ETL workloads to a data warehouse. ETL is a very complex topic […]
Is it always important to have the most current data? Steve notes that you might need to make a decision here.
Learn how to create charts and graphs with R and how you can use R code in SSMS to generate and save graphs to an external file.
One of your SQL Server instance shows a major dip in performance or throughput, affecting all the user databases. You notice that the slow interludes coincide, as if orchestrated. On investigation, it appears that several transactions running over that period were using a lot of space in tempdb. However, which of them, if any, are causing the tempdb bottleneck, and why?
Many people don't feel like they can make changes in their work environment. Today Steve notes this is common in many organizations.
When it comes to developing a Power BI report, we can use it for accessing data, transforming the data, and turning the data into information using visuals. With no doubt Power BI can do the job from beginning to end. Now, this is not the only, nor necessarily the best, tool for all the steps […]
When inserting rows into a heap, SQL Server must sometimes update the PFS page which can PFS contention and affect performance. In this article, Uwe Ricken demonstrates how to measure PFS contention.
In this tutorial we will cover common questions related to the SQL Server msdb database. This is one of the standard system databases that are part of every SQL Server installation.
Changes in data privacy law in California are demanded by consumers.
Learning to be a better database developer can be hard. Today Steve asks how you might suggest someone learn.
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A cryptic message, a book cipher hidden in art provenance records, and a trail...
By Steve Jones
A customer was trying to compare two tables and capture a state as a...
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When I'm looking at a query, I bet it's bad if I see... a...
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In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37 4 NULLWhat is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 4;See possible answers