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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Cache on sysdate? --From 9i performance planning manual
In PL/SQL, every statement which references SYSDATE or USER
or USERENV or similar functions (such as your second
suggestion) is automatically translated into an individual
SELECT xxx FROM DUAL statement, behind the scenes.
You don't have a choice. Call it a weakness of PL/SQL...
>
> Can someone please explain me why you have to use
>
> select sysdate
> from dual
> /
>
> when
>
> my_date_Var := sysdate;
>
> just works fine? Maybe I am clueless ... but I can take an
> explanation
> Raj
> ______________________________________________________
> Rajendra Jamadagni MIS, ESPN Inc.
> Rajendra dot Jamadagni at ESPN dot com
> Any opinion expressed here is personal and doesn't reflect
> that of ESPN Inc.
> QOTD: Any clod can have facts, but having an opinion is an
> art!
> [Attachment: ESPN_Disclaimer.txt]
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Tim Gorman INET: tim_at_sagelogix.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Thu Dec 26 2002 - 11:58:47 CST
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