You can do all three, but if you do not declare it you can't use the 'for update
of' clause. Of course the 'for i in ()loop' does replace a lot of lines of code.
Dick Goulet
Reply Separator
Author: Steve Smith [EMAIL PROTECTED]
Date: 10/1/2001 7:50 PM
You can also use the for loop - end loop with explicit cursors.. You don't
have to define the cursor in the loop itself.. That is my preferred method
(defining the cursor in the declare section and referencing it in the for
loop).. There really isn't any more work defining the cursor up front and
then using the for loop as there is using the for loop and defining the
cursor in the loop..
Steve
- Original Message -
To: Multiple recipients of list ORACLE-L [EMAIL PROTECTED]
Sent: Monday, October 01, 2001 6:01 PM
If you only use a cursor in this manner, the only place that the cursor
can
be used is in the particular For Loop in which it is defined - it can't be
shared by other procedures or functions.
If you design and create packaged public cursors, they can be reused from
other stored procedures and/or client side programs.
Code reuse is just one advantage. When table structures change - as they
invariably do - you have only a few cursors to change, instead of a
bazillion Cursor For Loops. Also, you can more easily tune a few public
cursors.
I'd also recommend passing in Table%RowType arguments to your public
cursors
and specifying that they return Table%RowType records. That further
isolates your code from table changes.
Jack
Jack C. Applewhite
Database Administrator/Developer
OCP Oracle8 DBA
iNetProfit, Inc.
Austin, Texas
www.iNetProfit.com
[EMAIL PROTECTED]
(512)327-9068
-Original Message-
Zsolt
Sent: Monday, October 01, 2001 6:15 PM
To: Multiple recipients of list ORACLE-L
Hi,
If this code is a cursor then why doesn't everybody use it this way?
For me it seems a lot simplier and easier than declaring a cursor in a
normal way.
At 14:50 2001.10.01. -0800, you wrote:
the code IS a cursor
--- Csillag Zsolt [EMAIL PROTECTED] wrote:
Hi,
I've read in Tom Kyte's book the following technique:
For i in (Select statement ) Loop
Process records here
End Loop ;
I have tried it and it works great.
The question is that what is the difference betwen a cursor and the
code above?
Which is more efficient?
Zsolt Csillag
Hungary
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Jack C. Applewhite
INET: [EMAIL PROTECTED]
Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051
San Diego, California-- Public Internet access / Mailing Lists
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (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.com
--
Author: Steve Smith
INET: [EMAIL PROTECTED]
Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051
San Diego, California-- Public Internet access / Mailing Lists
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (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.com
--
Author:
INET: [EMAIL PROTECTED]
Fat City Network Services-- (858) 538-5051 FAX: (858) 538-5051
San Diego, California-- Public Internet access / Mailing Lists
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (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).
