RE: Counting number of rows
- From: "Khedr, Waleed" <Waleed.Khedr@xxxxxxx>
- To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 17 Feb 2004 16:55:53 -0500
It did not work for me, for some reason it always returns zero
Waleed
-----Original Message-----
From: Mladen Gogala [mailto:mladen@xxxxxxxxxxxxxxx]
Sent: Tuesday, February 17, 2004 4:15 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: Re: Counting number of rows
The function below would count rows extremely quickly, and is
independent of the table size. Even better, it is completely accurate
and doesn't rely on the underlying statistics. The table
in question may not even be analyzed. It does have one minor
shortcoming, however.
<PRANK>
create or replace
function count_rows(tbl in varchar2) return number deterministic
as
TRUNC VARCHAR2(128):='truncate table '||tbl;
begin
execute immediate trunc;
return(0);
end;
/
</PRANK>
On 02/17/2004 03:27:31 PM, "Potluri, Venu (CT Appl Suppt)" wrote:
> Is there a quick way to count number of rows in a table? Don't want
> to
> do select count(*) from..... on a table (such as GL_BALANCES) with
> more than 250 million rows.
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