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The Transformation Language
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Creating Custom Functions
Custom Function API Reference

Transformation Language Reference

10.5.1
- 10.5.9
- 10.5.8
- 10.5.7
- 10.5.6
- 10.5
- 10.4.0

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LENGTH

Returns the number of characters in a string, including trailing blanks.

Syntax

LENGTH( string )

The following table describes the argument for this command:

Argument	Required/ Optional	Description
string	Required	String datatype. The strings you want to evaluate. You can enter any valid transformation expression.

Return Value

Integer representing the length of the string.

NULL if a value passed to the function is NULL.

Example

The following expression returns the length of each customer name:

LENGTH( CUSTOMER_NAME )

CUSTOMER_NAME	RETURN VALUE
Bernice Davis	13
NULL	NULL
John Baer	9
Greg Brown	10

Tips for LENGTH

Use LENGTH to test for empty string conditions. If you want to find fields in which customer name is empty, use an expression such as:

IIF( LENGTH( CUSTOMER_NAME ) = 0, 'EMPTY STRING' )

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Table of Contents

Transformation Language Reference

Transformation Language Reference

LENGTH

LENGTH

Syntax

Return Value

Example

Tips for LENGTH