[Info-vax] Example of random access by record number on an RMS fixed record size, relative organization file?

gah4 gah4 at u.washington.edu
Thu Sep 21 14:20:42 EDT 2023


On Thursday, September 21, 2023 at 10:22:57 AM UTC-7, Dave Froble wrote:

(snip)

> > Otherwise, it is usually to make it a hash table, and hash the 
> > index before using it to read/write a record.

> If the requirement is some type of keyed file, then just use a keyed file type.

OS/360 has a keyed file type, but I believe it does a linear search.
I suspect it is used for the index of ISAM.





More information about the Info-vax mailing list