Correct Answer: A package is a collection of related PL/SQL objects The package contains a body and a specification The package specification has the declaration which is public and can be used in the PL/SQL sub programs inside the package The package body holds the implementation of all the PL/SQL objects declared in the specification Example of a PL/SQL Package CREATE OR REPLACE PACKAGE emp_data AS PROCEDURE add_employee ( ename VARCHAR2, job VARCHAR2, mgr NUMBER, sal NUMBER, deptno NUMBER); END emp_actions; CREATE OR REPLACE PACKAGE BODY emp_data AS PROCEDURE add_employee ( ename VARCHAR2, job VARCHAR2, mgr NUMBER, sal NUMBER, deptno NUMBER) IS BEGIN INSERT INTO emp VALUES (empno_seqNEXTVAL, ename, job, mgr, SYSDATE, comm, deptno); END add_employee; END emp_data; Advantages of PL/SQL packages : Packages are easier for application designing, encapsulating data, additional functionality and better performance An application has various modules which can be placed in packages and handled easier
