T
Thiru
Guest
I am new to progress 4GL. I'm always willing to write a proper code and willing to know each end every keyword that we are using but following sample queries giving same results. I don't know when to use FIND FIRST, FOR FIRST and CAN-FIND? Please help me by re-writing with impeccable answer
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Code:
FOR EACH Customer NO-LOCK:
FOR FIRST Order OF Customer:
/*somelogic*/
END.
END.
FOR EACH Customer NO-LOCK:
FIND FIRST Order OF Customer NO-LOCK NO-ERROR.
IF AVAILABLE Order THEN
/*somelogic*/
END.
FOR EACH Customer NO-LOCK:
IF CAN-FIND(FIRST Order OF Customer ) THEN
DO:
/*somelogic*/
END.
END.
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