The SQL Server LAG Function
The LAG function can really improve performance over the old double JOIN.
2019-01-21 (first published: 2019-01-14)
3,529 reads
Articles
Creating Measures Using DAX
In the first article in this series, Andy Brown demonstrated how to create calculated columns in Power BI using the DAX language. This second article in the series explains what measures are, and how you can use DAX to create measures within Power BI. The formulae in the article apply equally well to PowerPivot and Analysis Services Tabular Model.
2019-01-21
2,447 reads
Manipulating Filetable Files Programatically
Learn how you can work with FileTable files from T-SQL as an alternative to the drag and drop methods of using Windows Explorer
2019-01-18 (first published: 2016-01-28)
8,899 reads
Do Functions Stop You From Using Indexes?
If you have a function in the WHERE clause, you might have heard you can't use indexes. That's not entirely correct.
2019-01-18
3,536 reads
Logging SQL and Change-Tracking Events in EF Core
Julie Lerman introduces you to the new logging APIs in .NET Core, concentrating on SQL and change-tracking events, with a focus on providers that output to the console and the debugger.
2019-01-18
2,083 reads
Saving Data to Various Formats, Using SQL
You have many options when exporting data from a database. In this article, Phil Factor compares several methods including XML and array-in-array JSON for speed and file size.
2019-01-17
3,509 reads
Using T-SQL to Fix Bad Data in XML Documents Using FLWOR
Learn how to use T-SQL to fix contents of an XML document using FLWOR
2019-01-17
2,558 reads
Using T-SQL to find the Greatest Common Divisor (GCD) for any number of integers
In this tip we look at T-SQL code that can be used to determine the greatest common divisor for a set of integers.
2019-01-16
2,635 reads
New Preview of SQL Server Management Studio Available for Download
On September 24th Microsoft released the first Community Technical Preview for SQL Server 2019, which was CTP2.0. At the same time Microsoft pushed out a new preview for SQL Server Management Studio (SSMS) known as version 18. Now is the time to download this new preview!
2019-01-15
4,118 reads
SQL Server Logical Reads – What do they really tell us?
SQL Server trace, the most common tool DBAs use to evaluate query performance, provides the ‘logical reads’ counter on which many DBAs rely for evaluating a query’s I/O performance. In this article, we will examine this counter’s true meaning and provide examples that prove it can sometimes be quite misleading
2019-01-15
3,258 reads
Blogs
A bespoke reporting solution doesn’t have to cost the earth
By ChrisJenkins
You could be tolerating limited reporting because there isn’t an off the shelf solution...
Presenting with Visual Studio Code
A while back I wrote a quick post on setting up key mappings in...
Advice I Like: In 100 Years
By Steve Jones
In 100 years a lot of what we take to be true now will...
Forums
Lots of FKs
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Real-time On-prem SQL Server Data in Excel – Over the Internet
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Can You Let Go of Determinism
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Question of the Day
Lots of FKs
In SQL Server 2025, what are the most outgoing and incoming FK references a table can have?
See possible answers