Something like this? 
while (1) {
  my ($ct1) = $dbh->selectrow_array('select count(*) from TABLE');
  sleep 60;
  my ($ct2) = $dbh->selectrow_array('select count(*) from TABLE');
  print ($ct2 - $ct1)," rows added in the last minute\n";
}

[download]

Update: While I fully agree that a database trigger would be far more efficient and functional than a simple rowcount query, my suggestion was based on two assumptions:

  1. The question was asked on PerlMonks, so presumably a Perl solution was the desired response.
  2. The desire to monitor a database does not imply the desire or permission to alter it. Adding triggers or otherwise altering the database created and used by many commercial applications is a very bad idea: it can cause the application to break and technical support to be denied or limited to "remove your changes".

The original poster - an Initiate here - seems to have fully understood my suggestion, or rather the implications of it. I'm surprised, shocked even, at the non-Perl-based responses by people who have been here far longer.

In reply to Re: Perl to monitor a table in database by keszler
in thread Perl to monitor a table in database by pid

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