The other day we needed to ship a customer name and address file to a client in zip code sequence. The file wasn't indexed by zip code. However, a logical view by zip code did exist. Our first thought was to write a simple RPG program to read the file through the logical view and output to a new physical file. But before we did, we tried using the Copy File (CPYF) command using the logical file name in the FROMFILE parameter and the physical file name in the TOFILE parameter, as follows:
CPYF FROMFILE(logical_file) +
TOFILE(physical_file) +
CRTFILE(*YES)
It worked! We had a physical copy of the file in the sequence we needed it - with no programming.
Note: The TOFILE will always be a sequential file unless you create it with DDS describing a key. In this case, however, the CRTFILE parameter must be '*NO' and the MBROPT parameter must be '*ADD'.
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