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Re: What is the table "dual"

From: James Petts <jpetts_at_celltech.co.uk>
Date: 1997/11/19
Message-ID: <3472C294.5BED@celltech.co.uk>#1/1

Casper Thrane wrote:
>
> Hi!
>
> I have seen a sql-scripr that looks like this:
>
> select to_number (':FraMnd'||'01') StartDato from dual;
>
> what is "dual".

dual is a small table with a single row and a single column. When you want to play around and just select a literal or pseudo-columns such as SysDate you can use dual as the table from which to "SELECT".

-- 
James "I'd rather fall off Ilustrada than ride any other horse" Petts
Received on Wed Nov 19 1997 - 00:00:00 CST

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