ESCAPE TOP indicates that processing is to continue at the

top of the processing loop. This starts the next repetition

of the processing loop.

ESCAPE BOTTOM indicates that processing is to continue with

the first statement following the processing loop. The loop

is terminated and loop-end processing (final BREAK and END

DATA) is executed for all loops being terminated.

Whereas if you specify the keyword IMMEDIATE, no loop-end

processing will be performed(i.e.,final BREAK and END DATA

is not executed for all loops being terminated).