Any statement can be given a label in the form of an integer constant in
the range 1 to 99999. A label must appear at the beginning of a line. It can
have spaces before it and must have at least one space after it and before the
statement. A line that is a continuation must not be labeled.
The form for the GOTO statement is:
GOTO statements should only be used in exceptional circumstances. For example:
To exit from deeply nested flow constructs.
To jump to one of a number of terminating error conditions at the end of a
program or procedure.
Wherever possible, use an IF construct in preference to GOTO statements.