Answer / nitin

With the use of forward declaration we can call other package

Answer / subha

First compile package A and B spec then compile package body of both A and B.

Answer / ss

i know sql so here A and B are two tables which both having Primary and foreign Key so from A's PK is referring in to B and B's PK referring in to  A 
OR select * from A inner join B on (A.id=B.AID)

Answer / nitin

Forward declaration can be implemented for procedure only.In one package you can create inter-dependency but for package it is not possible.

Answer / anil

I assume this question as:
") I have 2 programs  A and B. Now program A references Program  B and Program B references Program A. How do you compile such inter-dependent objects in PL/SQL"

ANS:We can compile mutually referencing programmes using FORWARD declaration(specifying the declaration of one program in beginning of package body) inside a PACKAGE.
Example:
CREATE OR REPLACE PACKAGE test_pack
IS
gvar NUMBER:=0;
--PROCEDURE p1; --we can also achieve like this
END;
/

CREATE OR REPLACE PACKAGE BODY test_pack
IS
PROCEDURE p1; --forward declaration

PROCEDURE p2 
IS
BEGIN
P1;
END;

PROCEDURE p1
IS
BEGIN
p2;
END;

END;

What is the purpose of the primary key?

0 Answers  

How global cursor can be declare with dynamic trigger ?

0 Answers  

What is the command used to fetch first 5 characters of the string?

0 Answers  

What is the difference between sum and count in sql?

0 Answers  

What are the two types of cursors in pl sql?

0 Answers  

Is sql an operating system?

0 Answers  

Is pl sql a scripting language?

0 Answers  

I Defined SP1, Sp2 (sp=StoreProcedures)In Package Specification but I Implemented Sp1, sp2, sp3, sp4, sp5 then What type of Error You will find????

3 Answers   Infosys,

What are the different schemas objects that can be created using pl/sql?

0 Answers  

Is primary key is clustered index?

0 Answers  

What is crud diagram?

0 Answers  

What is sqlcommand?

0 Answers