Title: RE: Which is beter a cursor or a for loop?

Thanks everyone!

Regards
Denham

-----Original Message-----
From: Connor McDonald [mailto:[EMAIL PROTECTED]]
Sent: Monday, February 24, 2003 4:59 PM
To: Multiple recipients of list ORACLE-L
Subject: Re: Which is beter a cursor or a for loop?


If you are after the n'th degree performance then the:

for x in (select ... )

will be minisculely faster (simply because its
slightly less code and plsql is interpreted).  And
unless I have a particular need for the cursor
%attributes, or the cursor needs to be passed around I
prefer the sql directly in the for-loop.  I don't have
to hunt up through the procedure/package to find the
cursor definition, and (subjectively) I find it easier
to read.

hth
connor

 --- Tim Gorman <[EMAIL PROTECTED]> wrote: > Both use
cursors, but a FOR loop is more concise
> coding.  Technically, they
> are exactly equivalent;  the differences are just
> stylistic...
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L"
> <[EMAIL PROTECTED]>
> Sent: Monday, February 24, 2003 3:08 AM
>
>
> > I would suggest that the cursor is the best way to
> go.
> > -----Original Message-----
> > Sent: 24 February 2003 08:39
> > To: Multiple recipients of list ORACLE-L
> >
> >
> >
> > Hello,
> >
> > I was just asked by one of our developers which is
> beter to use:-
> > a cursor or a for loop?
> > I must admit I am not sure....
> >
> > Anyway the specific piece of code in discussion is
> similar to the
> > following....
> >
> >         FOR X IN (SELECT X FROM TABLE_NAME
> >                     WHERE COL1 = 'Something'))
> >             LOOP
> >                 Do a whole lot of stuff in
> database here......
> >             LOOP END;
> >
> > I would guess that the cursor would follow similar
> execution criteria but
> > using
> > the cursor syntax.
> >
> > Any ideas?
> >
> > TIA
> > regards
> > Denham Eva
> > Oracle DBA
> > The real problem is not whether machines think but
> whether men do.
> > - B. F. Skinner
> >
> >
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=====
Connor McDonald
web: http://www.oracledba.co.uk
web: http://www.oaktable.net
email: [EMAIL PROTECTED]

"GIVE a man a fish and he will eat for a day. But TEACH him how to fish, and...he will sit in a boat and drink beer all day"

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