Rather than count the number of connections which would be prone
to failure due to race conditions, you should do this instead:

BEGIN EXCLUSIVE;
  -- run whatever SQL statements you want here, 
  -- or copy the database file.
COMMIT;

Just schedule this job off-hours when people are not likely using the
database.

--- Chase <[EMAIL PROTECTED]> wrote:
> is there any way (in c/c++) to find out how many current connections
> there are to a database that i am connected to?
> 
> i'd like to do some housekeeping on the database every so often, but
> only if there's no one else connected to it at the time.



       
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