This will give you the difference in record counts, not the number of records added. For example: 

  t +  1: add  5 rows
  t + 10: add  5 rows
  t + 20: del 20 rows
  t + 30: add  5 rows
  t + 50: add 10 rows

[download]

Your code would give an answer of 5 if $ct1 was obtained at time t. moritz's trigger answer would give a more accurate answer if you actually need the could count [1] of items added, and not just the difference in the row counts.

Updates:

  1. Fixed spelling mistakes.

--MidLifeXis

In reply to Re^2: Perl to monitor a table in database by MidLifeXis
in thread Perl to monitor a table in database by pid

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