2024-12-18
1,375 reads
User Defined Function (UDF)
2022-07-27
594 reads
A User-Defined Function returns more rows
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
5,114 reads
2008-05-20
4,231 reads
A Function Gotcha with the Use of an Asterisk
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)
18,687 reads
UDF to return a multi column table of values from an input string
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)
1,810 reads
2008-02-13 (first published: 2007-12-18)
1,733 reads
Understand when to use user-defined functions in SQL Server
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
Payment due date function
Calculates the nth due date for any given date, while accounting for weekends.
2012-05-16 (first published: 2007-10-11)
3,756 reads
Complex Computed Columns
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
21,603 reads
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Which Result II
Comments posted to this topic are about the item Which Result II
Question of the Day
Which Result II
I have this code in SQL Server 2022:
CREATE SCHEMA etl;
GO
CREATE TABLE etl.product
(
ProductID INT,
ProductName VARCHAR(100)
);
GO
INSERT etl.product
VALUES
(2, 'Bee AI Wearable');
GO
CREATE TABLE dbo.product
(
ProductID INT,
ProductName VARCHAR(100)
);
GO
INSERT dbo.product
VALUES
(1, 'Spiral College-ruled Notebook');
GO
CREATE OR ALTER PROCEDURE etl.GettheProduct
AS
BEGIN
exec('SELECT ProductName FROM product;')
END;
GO
When I execute this code as a user whose default schema is dbo and has rights to the tables and proc, what is returned? See possible answers