In the COBOL program, using calls to IO modules, can the same file be opened with a physical fiile definition and a logical file definition at the same time?
Or can it be opened as a physical file and then read by logical key and updated with physical key? Or does the file have to be opened as input, read by logical, closed and then opened as i/o by physical ?
October 9, 2008 8:40 PM
August 21, 2010 9:54 AM