Procedure Definition Language Concepts and Language Elements › PDL Language Elements › Alphanumeric function

Alphanumeric function

A function that returns an alphanumeric value. An example of an alphanumeric function is $STRING. You can nest alphanumeric functions in other alphanumeric functions to three levels. In the following example, the number above each function represents the level of nesting:

           1       2                   3
$STRING($SUBSTR($STRING('XXXXBEGIN',$SUBSTR(FLD,START=4))))