Re: how to do a variable in-list of numbers?

i used it because i needed i a cursor to do an 'insert values' so i grabbed my data from the cursor i needed anyway. Plus I needed to use it multiple times. Plus the tables are not indexed since they were designed to optimize inserts.

So basically if you are going to 'resuse' the inlist, your join isnt optimized, and/or you need the cursor to grab the inlist for something else, then its useful.
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Sunday, September 14, 2003 6:39 PM

> It's beginning to be late here and I'm feeling pretty tired, so I don't
> totally exclude my erring, but I believe that there is a basic
> conceptual flaw here. I see CAST as a way to turn into a relational
> object something which is not, by essence, a relational object (I would
> typically say the same of external tables). It's a great technique to
> map a PL/SQL table into something looking like a table - but only if the
> data you have to store into the PL/SQL table doesn't come form Oracle in
> the first place. Otherwise, could someone explain to me what is the
> benefit over a SELECT ... WHERE IN (SELECT ...) if a cursor is used to
> determine the in list ? The pleasure of loading more data into your PGA,
> perhaps ? Or is it 'why make simple when you can make complicated' in
> action ?
>
> SF
>
> Govindan K wrote:
> >
> > Here is an example of the CAST.
> > May be you shall try this approach.
> >
> > set serveroutput on size 1000000;
> > set echo on
> > DROP TYPE my_table_type
> > /
> > CREATE or REPLACE TYPE my_record_type as OBJECT
> > ( MSG_SYS_NO NUMBER(12) )
> > /
> > CREATE or REPLACE TYPE my_table_type as TABLE of my_record_type
> > /
> > declare
> > buf_data my_table_type := my_table_type() ;
> > begin
> > buf_data.EXTEND ;
> > buf_data(1) := my_record_type(123456789012) ;
> > buf_data.EXTEND ;
> > buf_data(2) := my_record_type(123456789012) ;
> > FOR CX in
> > (
> > select MSG_SYS_NO from
> > TABLE ( cast( buf_data as my_table_Type ) )
> > )
> > loop
> > dbms_output.put_line('msg_sys_no = '||cx.msg_sys_no);
> > end loop;
> > end;
> > /
> > set echo off
> >
> > HTH
> > GovindanK
> >
> > On Sun, 14 Sep 2003 08:59 , Ryan <rgaffuri_at_cox.net> sent:
> >
> > >it was on asktom. you create a type in the database and use a CAST. it
was
> > >pretty easy. you just need to add an object.
> > >----- Original Message -----
> > >To: "Multiple recipients of list ORACLE-L" ORACLE-L_at_fatcity.com>
> > >Sent: Sunday, September 14, 2003 12:44 PM
> > >
> > >
> > >> I am catching up on the mail from the list and I think you can use
dynamic
> > >> sql.
> > >> Something like:
> > >>
> > >> mysql := 'insert into tab2 select col1 from tab1 where col2 in (';
> > >> open cursor
> > >> mysql := mysql || value || ',';
> > >> loop
> > >> substr(mysql,-1,1) := ');';
> > >> execute immediate '&mysql';
> > >>
> > >> Yechiel Adar
> > >> Mehish
> > >> ----- Original Message -----
> > >> To: "Multiple recipients of list ORACLE-L" ORACLE-L_at_fatcity.com>
> > >> Sent: Friday, August 29, 2003 4:31 PM
> > >>
> > >>
> > >> > I need to do an insert select of the form
> > >> >
> > >> > insert into tab2
> > >> > select col1
> > >> > from tab1
> > >> > where col2 in (inlist of numbers);
> > >> >
> > >> > I do not know how many values will be in my inlist at runtime. With
> > >> strings I just build a big string. How do I build an 'inlist' of
numbers
> > >at
> > >> runtime?
> > >> >
> > >> > Im using a cursor to determine which values need to be added to my
> > >inlist.
> > >> I think I can do some kind of cast, but im not familiar with it.
> > >> >
> > >> > Im on 8i. I do not want to j ust run this inside my cursor. It
could
> > >then
> > >> execute 300-400 times and will run all day.
> > >> >
> > >> > --
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Stephane Faroult
> INET: sfaroult_at_oriole.com
>
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-- 
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-- 
Author: Ryan
  INET: rgaffuri_at_cox.net

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