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'.
Midrange Computing
Business users want new applications now. Market and regulatory pressures require faster application updates and delivery into production. Your IBM i developers may be approaching retirement, and you see no sure way to fill their positions with experienced developers. In addition, you may be caught between maintaining your existing applications and the uncertainty of moving to something new.
IT managers hoping to find new IBM i talent are discovering that the pool of experienced RPG programmers and operators or administrators with intimate knowledge of the operating system and the applications that run on it is small. This begs the question: How will you manage the platform that supports such a big part of your business? This guide offers strategies and software suggestions to help you plan IT staffing and resources and smooth the transition after your AS/400 talent retires. Read on to learn:
LATEST COMMENTS
MC Press Online