W dniu 2020-02-27 o 14:37,
sivapostgres@yahoo.com pisze:
> Hello,
>
> I'm saying isolation will not work out to my requirement. The steps.
>
> 1. On completion of all entries by all, say for a day.
> 2. Lock, so that no one enters any other data.
> 3. Create a report from the entered data.
> 4. Create / Modify required entries from the values arrived in the report. [ long process ]
> 5. Once completed, commit all data.
> 6. Unlock, so that other users can enter data again. Data entered will be for another date.
> Data cannot [should] not entered for the processed date.
>
so wouldn't pg_advisory_lock() in step 2, and pg_advisory_unlock() in step 6, make the process work
in the way you expect?
https://www.postgresql.org/docs/current/functions-admin.html#FUNCTIONS-ADVISORY-LOCKS>
>
> On Thursday, 27 February, 2020, 06:29:00 pm IST, Ireneusz Pluta/wp.pl <
ipluta@wp.pl> wrote:
>
>
> W dniu 2020-02-27 o 12:35,
sivapostgres@yahoo.com <mailto:
sivapostgres@yahoo.com> pisze: