The Retrieve File CCSID (Code Character Set ID) command retrieves a summary of
the CCSIDs specified for a data base file. CCSIDs are assigned to each
character field in a file and normally all character fields will use the same
CCSID. If different CCSIDs are used within the file, different processing may
be required. RTVCCSID allows you to determine if a file uses a standard CCSID
for all character fields and what the value is.