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This is an excellent technique for a number of reasons:
1 - If you want to put extra error handling in the subprocedure (record
locked, if IBM ever allows a before read trigger, etc) then that "clutter"
is out of your main loop.
2 - If you want to do extra processing on your read, like decrypt
encrypted data, then that "clutter" is out of your main loop.
3 - If someone wants to add the ITER opcode in the middle of the loop then
they don't have to be concerned with whether the READ will be executed.

Rob Berendt

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