Dennis Lee Bieber wrote: > > Isolation levels I've seen, but not in the RDBMs I tend to have most > experience > with (and for those I have documentation of, "The Firebird Book" is the > only one that seems to be explicit about multiple generations of updates > based on transactions; others seem to imply that updates block all other > transactions until committed -- at which point other transactions would > see them).
Take a look here for some PostgreSQL documentation on transaction isolation levels: http://www.postgresql.org/docs/7.4/static/transaction-iso.html Paul -- http://mail.python.org/mailman/listinfo/python-list
