How to join two pl/sql tables .,.,,Urgent pls help

Question

Hi,
Please tell me how to join to pl/sql tables with example
thanks
asp

Answer 1

If your main intention is to get the common records/or getting whole records from the 2 different pl/sql arrays then , pls check this piece of code & explanation
The SQL language has long offered the ability to apply set operations (UNION, INTERSECT, and MINUS) to the result sets of queries. In Oracle Database 10g, you can now use those same high-level, very powerful operators against nested tables (and only nested tables) in your PL/SQL programs and on nested tables declared as columns inside relational tables.
Let's take a look at some of the syntax needed to do this, starting with UNION.
First, I create a schema-level nested table type:
CREATE OR REPLACE TYPE strings_nt
IS TABLE OF VARCHAR2(100);
Then I define a package and within it create and populate two nested tables of this type, each containing some of my father's and my favorite things:
CREATE OR REPLACE PACKAGE favorites_pkg
IS
my_favorites strings_nt
:= strings_nt ('CHOCOLATE'
, 'BRUSSEL SPROUTS'
, 'SPIDER ROLL'
dad_favorites strings_nt
:= strings_nt ('PICKLED HERRING
, 'POTATOES'
, 'PASTRAMI'
, 'CHOCOLATE'
PROCEDURE show_favorites (
title_in IN VARCHAR2
, favs_in IN strings_nt
END;
In this package, I also include a procedure to show the contents of a strings_nt nested table. This will come in very handy shortly.
By defining these collections in a package, outside any program, they persist (they maintain their state and values) for the duration of my session or until I change or delete them. This means that I can now write programs outside the package to manipulate the contents of those collections.
Note that this package has been simplified for the purposes of presenting collection functionality. In a production application, you should always take care to "hide" your package data, as with these collections, in the package body, and then provide procedures and functions to manage the data.
Suppose, for example, that I would like to combine these two collections into a single collection of our favorites. Prior to Oracle Database 10g, I would have to write a loop that transfers the contents of one collection to another. Now, I can rely on the MULTISET UNION operator, as shown below:
DECLARE
our_favorites
strings_nt := strings_nt ();
BEGIN
our_favorites :=
favorites_pkg.my_favorites
MULTISET UNION ---- Use INTERSECT , if you want to know common records
favorites_pkg.dad_favorites;
favorites_pkg.show_favorites (
'ME then DAD', our_favorites);
END;
The output from this script is:
ME then DAD
1 = CHOCOLATE
2 = BRUSSEL SPROUTS
3 = SPIDER ROLL
4 = PICKLED HERRING
5 = POTATOES
6 = PASTRAMI
7 = CHOCOLATE
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