On Sun, Apr 13, 2003 at 16:42:59 +0200,
Ben-Nes Michael <miki@canaan.co.il> wrote:
> Hi All
>
> What happens when two people try to update the same table simultaneously ?
>
> The second one wait until the first one finish ?
>
> Also what happens when the transaction is more complex then one update ?
> I mean first I read some tables and then start to update / delete / insert
> other tables ( using function for example )
>
> will the second action will wait until the function transaction will end ?
Read: http://developer.postgresql.org/docs/postgres/mvcc.html