ISNOTNULL function

Purpose | Determine if a string is not null (contains 1 or more characters).
Syntax | ResultVar& = ISNOTNULL(StrgExpr)
Remarks | The StrgExpr is examined to determine if it is null, or if it contains one or more characters. The value true (-1) is returned if the StrgExpr contains characters, or false (0) if it is null (zero-length). The complementary function is ISNULL.
See also | ISNULL