Delain Huggins wrote:
> 
> We are getting ready to set up a Postgres database w/Access frontend with
> 15-25 users.  What are the record locking concerns that we need to be aware

What's PG version? 6.5?

> of?  Where is record locking set and what levels are there if any?  Can

In 6.5 writers lock changed records and block the-same-row writers only.

> queries/reports be run off a record that is being edited at the same time?

Yes (in 6.5). Queries will return records as they were when 
query/transaction began (regardless of _current_ record states).

> We haven't been able to find much info on Postgres and record locking.

PostgreSQL User's Guide, Chapter 10. Multi-Version Concurrency Control

Vadim

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