2024-12-18
1,371 reads
2024-12-18
1,371 reads
2022-07-27
589 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
5,100 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)
18,681 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)
1,801 reads
2008-02-13 (first published: 2007-12-18)
1,729 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)
3,751 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
21,568 reads
Unused Indexes in SQL Server: Find them, vet them, and drop them safely Indexes are...
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