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Microsoft® SQL Server 2008 R2 Unleashed
book

Microsoft® SQL Server 2008 R2 Unleashed

by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
September 2010
Intermediate to advanced content levelIntermediate to advanced
1704 pages
111h 8m
English
Sams
Content preview from Microsoft® SQL Server 2008 R2 Unleashed

Creating User-Defined Functions

You create T-SQL functions by using T-SQL statements. You can enter the T-SQL code in sqlcmd, SSMS, or any other third-party query tool that allows you to enter ad hoc T-SQL code. The following sections first show the basic syntax for creating functions and then show how you can create functions by using the features of SSMS.

Creating T-SQL Functions

User-defined functions can accept 0–2,100 input parameters but can return only a single result: either a single scalar value or table result set.

The T-SQL syntax for the CREATE FUNCTION command for scalar functions is as follows:

image

The syntax for the CREATE FUNCTION ...

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Publisher Resources

ISBN: 9780768696585Purchase book