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 difference between group by and partition by?

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While inserting 10 rows using procedure, if 3rd entry is having some error, what will be the output? How u will handle that error?

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check whether all the emp numbers are indeed unique.

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Are stored procedures compiled?

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write a query to remove null following table are id name 101 dinesh null jyothi null bharathi 102 suresh null shilpha 103 prakesh null suma i want the output format like id name 101 dinesh 102 suresh 103 prakesh

3 Answers   TCS,

What is rtm stands for?

0 Answers