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Home -> Community -> Mailing Lists -> Oracle-L -> Re: RE: full usefulness of CURRENT OF ???
using pl/sql with update is very slow. much slower than just sql. so only use if you absolutely have to.
i avoid it at all costs.
>
> From: "Jamadagni, Rajendra" <Rajendra.Jamadagni_at_espn.com>
> Date: 2003/07/11 Fri PM 03:09:24 EDT
> To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> Subject: RE: full usefulness of CURRENT OF ???
>
> Try with a complicated where clause where your where_clause is a page long
> ...
>
> Raj
> ----------------------------------------------------------------------------
> ----
> Rajendra dot Jamadagni at nospamespn dot com
> All Views expressed in this email are strictly personal.
> QOTD: Any clod can have facts, having an opinion is an art !
>
>
> -----Original Message-----
> Sent: Friday, July 11, 2003 2:54 PM
> To: Multiple recipients of list ORACLE-L
>
>
> Could anyone give us an idea as to the full usefullness
> of CURRENT OF? Here are my two separate examples:
>
>
> /* 1 this one has a CURRENT OF */
>
> DECLARE
>
> CURSOR EmpCursor IS
> SELECT *
> FROM Emp
> FOR UPDATE;
>
> BEGIN
> FOR EmpRec IN EmpCursor LOOP
>
> UPDATE EMP
> SET SALARY = SALARY * 1.08
> WHERE CURRENT OF EmpCursor
>
> END LOOP;
>
> END;
>
>
> /* 2 same as above, except without the CURRENT OF */
> DECLARE
>
> CURSOR EmpCursor IS
> SELECT *
> FROM Emp
> FOR UPDATE;
>
> BEGIN
> FOR EmpRec IN EmpCursor LOOP
>
> UPDATE EMP
> SET SALARY = SALARY * 1.08
> WHERE EMP_ID = EmpRec.Emp_ID;
>
> END LOOP;
>
> END;
> /
>
>
> Is one more efficient than the other? If I could have done
> business without the CURRENT OF, then why did oracle made
> it available?
>
> thx
> maa
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Maryann Atkinson
> INET: maryann_30_at_yahoo.com
>
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> San Diego, California -- Mailing list and web hosting services
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>
>
Try with a complicated where clause where your where_clause is a page long ...
Raj
--------------------------------------------------------------------------------
Rajendra dot Jamadagni at nospamespn dot com
All Views expressed in this email are strictly personal.
QOTD: Any clod can have facts, having an opinion is an art !
-----Original Message-----
From: Maryann Atkinson [mailto:maryann_30@yahoo.com]
Sent: Friday, July 11, 2003 2:54 PM
To: Multiple recipients of list ORACLE-L
Subject: full usefullness of CURRENT OF ???
Could anyone give us an idea as to the full usefullness
of CURRENT OF? Here are my two separate examples:
/* 1 this one has a CURRENT OF */
DECLARE
CURSOR EmpCursor IS
SELECT *
FROM Emp
FOR UPDATE;
BEGIN
FOR EmpRec IN EmpCursor LOOP
UPDATE EMP
SET SALARY = SALARY * 1.08
WHERE CURRENT OF EmpCursor
END LOOP;
END;
/* 2 same as above, except without the CURRENT OF */
DECLARE
CURSOR EmpCursor IS
SELECT *
FROM Emp
FOR UPDATE;
BEGIN
FOR EmpRec IN EmpCursor LOOP
UPDATE EMP
SET SALARY = SALARY * 1.08
WHERE EMP_ID = EmpRec.Emp_ID;
END LOOP;
END;
/
Is one more efficient than the other? If I could have done
business without the CURRENT OF, then why did oracle made
it available?
thx
maa
--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Maryann Atkinson
INET: maryann_30@yahoo.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@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).
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: <rgaffuri_at_cox.net INET: rgaffuri_at_cox.net 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 Fri Jul 11 2003 - 14:19:23 CDT
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