OpenEdge Development:<br />Progress 4GL Reference LENGTH statement

Release 10.1A: OpenEdge Development:
Progress 4GL Reference

LENGTH statement

Changes the number of bytes in a raw variable.

Syntax
LENGTH ( variable ) = expression 
variable
A variable of type RAW.
expression
An expression that returns an integer.
Example

This procedure takes the number of bytes in the name stored in the variable r1 and truncates it to 2 bytes:
r-rawln1.p
/* You must connect to a non-PROGRESS demo database to run
  this procedure */

DEFINE VARIABLE r1 as RAW.

FIND customer WHERE cust-num = 29.
r1 = RAW(name).
LENGTH(r1) = 2. 
Notes

If variable is the Unknown value (?), it remains the Unknown value (?).

If expression is greater than the number of bytes in variable, Progress appends null bytes so that the length of variable equals the length of expression.