Good idea. That might work occasionally, but there is no guarantee that the driving file (that is, the one that needs to look up the data) is in the proper order, and those files are often large (10M ...
I have a sequential file that I'd like to use as a lookup table. The ARG field is a 3-byte number, but the DESC field is more than 400 bytes. I've discovered that the DESC field has a 254 character ...