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Custom Function API Reference

Transformation Language Reference

10.5
- 10.5.6
- 10.5.1
- 10.4.0

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DATE_COMPARE

Returns an integer indicating which of two dates is earlier. DATE_COMPARE returns an integer value rather than a date value.

Syntax

DATE_COMPARE( date1, date2 )

The following table describes the arguments for this command:

Argument	Required/ Optional	Description
date1	Required	Date/Time datatype. The first date you want to compare. You can enter any valid transformation expression as long as it evaluates to a date.
date2	Required	Date/Time datatype. The second date you want to compare. You can enter any valid transformation expression as long as it evaluates to a date.

Return Value

-1 if the first date is earlier.

0 if the two dates are equal.

1 if the second date is earlier.

NULL if one of the date values is NULL.

Example

The following expression compares each date in the DATE_PROMISED and DATE_SHIPPED ports, and returns an integer indicating which date is earlier:

DATE_COMPARE( DATE_PROMISED, DATE_SHIPPED )

DATE_PROMISED	DATE_SHIPPED	RETURN VALUE
Jan 1 1997	Jan 13 1997	-1
Feb 1 1997	Feb 1 1997	0
Dec 22 1997	Dec 15 1997	1
Feb 29 1996	Apr 12 1996	-1 (Leap year)
NULL	Jan 6 1997	NULL
Jan 13 1997	NULL	NULL

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Table of Contents

Transformation Language Reference

Transformation Language Reference

DATE_COMPARE

DATE_COMPARE

Syntax

Return Value

Example