Trivia question: Does anyone remember the difference between the following: FFILE1 IPEAE DISK FFILE2 ISEAE DISK and FFILE3 IPEAE DISK FFILE4 IS AE DISK and FFILE5 IP AE DISK FFILE6 ISEAE DISK
In the second example, LR will come on when FILE3 reaches EOF and the possibility exists that not all records will be read from FILE4. Since FILE3 is the IP file, any records in FILE4 with keys matching the last key in FILE3 will _not_ be processed.
In the third example, LR will come on when FILE6 reaches EOF and the possibility exists that not all records will be read from FILE5. Since FILE5 is the IP file, any records in FILE5 with keys matching the last key in FILE6 _will_ be processed.
How close am I? :)