[comp.databases] Locks on Online Transaction DBMS

paul@bcsfse.UUCP (Paul Hardiman) (11/02/88)

I need some expertise on a locking issue.

My project is investigating moving from a database
connection environment to one that is transaction oriented.
The issue has to do with locks on rows.  It is a relatively
simple matter to hold a lock for the duration of a connection
session, but the picture changes in a transaction environment.
So, how do transaction systems preserve locks on one transaction
and release it on a later transaction from the same user.

We have considered the possibility of using conceptual locks by tagging
a field on a row with something unique like the user's id.  However,
at first glimpse, this method seems to detract from the eloquence of
the system.

	Thank you for any assistance.
-- 
                             Paul Hardiman
                ...!uw-beaver!ssc-vax!voodoo!bcsfse!paul