DIGIT( ) function

Parameters

Name	Type	Description
byte_location	numeric	The byte position in the record.
position	numeric	The digit to return: specify 1 to return the upper half of the byte specify 2 to return the lower half of the byte

Examples

Basic examples

A packed field with the value 123.45 (00 12 34 5C), containing two decimals, and starting in byte position 10, appears in the data record in the following format:

	Byte 10	Byte 11	Byte 12	Byte 13
UPPER(1)	0	1	3	5
LOWER(2)	0	2	4	C

Returns 3 (finds the digit that appears in the 12th position in the upper half of the byte):

DIGIT(12, 1)

Returns 4 (finds digit that appears in the 12th position in the lower half of the byte):

DIGIT(12, 2) 

Remarks

How it works

DIGIT( ) separates individual halves of a byte, and returns the value of the byte specified in the position parameter as a digit between 0 and 15.

When to use DIGIT( )

Use DIGIT( ) to access individual half-bytes. This is required if you work with applications that use half-byte-aligned packed fields, such as Unisys applications.