I have to write a new COBOL program which uses a File as INPUT and generates another file as O/P.
The I/P file is abt 26000 bytes long and most of the fields are defined as COMP-3. From this I/P file, I have to take selected fields and move to the O/P file after expanding the compressed fields.(COMP-3).
I want to understand the logic best suited for writing this program. Will an Easytrieve be a better option ?
I am more concerned about the size of the O/P file since we need to expand all compressed fields. Pls advise from a performance perspective as well.
EZT will work, heck, sort copy will work.
The least labor intensive way I can think of (good programmers are inherently lazy) is COBOL.
You must already have a copybook or copyable image of the record description, duplicate is and find/replace the comp3's out of there.
Input file with the comp3's and output file without.
perform till EOF