a recent post I saw on comp.databases.oracle.server ....
From: Billy Verreynne
> Can someone tell me what's fast way to get total of records in a table
> except using "select count(*)" statement? Can I get the information from a
> system table?
Fast? You mean something like this:
SQL> set timing on
SQL> select count(*) from tjs_batch.prod_sapcallusage200304;
This is a straight cut-and-paste from a telnet session. The 6 seconds
will go down to 4 or even 2 seconds when run again as the applicable
bitmap index used will be cached.
So what's your reason for not wanting to use SELECT COUNT(*) or
thinking its slow?
One thing that really makes me reach for my lead pipe, is Oracle urban
legends Andy. Like thinking a SELECT COUNT(*) is slow, that standard
Oracle database's uptime is much less than that of the server it runs
on, that Oracle requires constant administration and a host more or
other silly tales.