[Info-vax] Indexed file read question

[Michael Moroney]

For whatever it's worth, keys in RMS index files can overlap and be segmented.
It's possible for the primary key to be a record number and the secondary key
be the record number with a character (A,B,L, blank) appended to the end. Both
would have no duplicates but both would be of the same type, likely a character
string.  You could have a third overlapping key which is just the (A,B,L, blank)
if you wanted to find all the "B" records for example.

Hardly a gee-whiz Oracle database but it can do a little more than most
people realize.

Not that it matters since the OP stated this was a migration away from VMS.