2024-12-18
1,370 reads
2024-12-18
1,370 reads
2022-07-27
586 reads
The Problem Recently, while working with one of my clients, I came across a script in which I had to introduce a scalar User-Defined Function in the SELECT statement. The SELECT used to return around 750K records. However, after introducing the UDF, the row count significantly increased to 826K. There were no other changes made […]
2019-10-14
5,072 reads
2008-05-20
4,226 reads
This article describes and demonstrates the problem of using asterisk to select all fields from a table within a table function. (from Apr 2008)
2009-09-11 (first published: 2008-04-30)
18,675 reads
This UDF returns a multi column table of values from an input string of comma separated values
2008-06-11 (first published: 2008-04-29)
1,790 reads
2008-02-13 (first published: 2007-12-18)
1,728 reads
In the simplest terms, a user-defined function (UDF) in SQL Server is a programming construct that accepts parameters, does work that typically makes use of the accepted parameters, and returns a type of result. This article will cover two types of UDFs: table-valued and scalar-valued.
2007-12-12
3,922 reads
Calculates the nth due date for any given date, while accounting for weekends.
2012-05-16 (first published: 2007-10-11)
3,742 reads
Computed columns in SQL Server 2000 allow you to have a calculated value available easily in a query. However by using a function instead of a simple formula you can build some very interesting solutions. New author Tim Chapman brings us a look at this technique.
2006-05-09
21,527 reads
Will adding generative AI to your data project improve the outcomes? It might, but...
By Chris Yates
In today’s enterprise landscape, agility and reliability go hand-in-hand. As organizations modernize legacy infrastructure...
By Steve Jones
I’m honored to be speaking at the PASS Data Community Summit in Seattle this...
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You're responsible for managing a SQL Server environment using Always On Availability Groups across two data centers. During a recent planned failover to the secondary replica, you noticed increased application latency and errors related to read-only routing. Upon investigation, you discover that read-only routing continues pointing to the former primary, now a secondary, for a period of time after the failover.
Which of the following best explains this behavior and how to resolve it?