How to Create a Package body?
- In Oracle PL/SQL, for creating the body of the package we must and should have specification of the package.
- The specification of the package is declared to the package interface along with the public procedures, functions, types and variables.
- After that we can create the body of the package for implementing the functionalities which are declared in the specification of the package.
- For creating a body of the package in PL/SQL, we can use the “CREATE PACKAGE BODY“.
Syntax for creating the package body:
CREATE [OR REPLACE] PACKAGE BODY package_name AS
-- Declarations of private variables, types, and cursors
-- Private procedures and functions
PROCEDURE procedure_name(parameter_list) IS
-- Implementation of the procedure
BEGIN
-- Body of the procedure
END procedure_name;
FUNCTION function_name(parameter_list) RETURN return_datatype IS
-- Implementation of the function
BEGIN
-- Body of the function
END function_name;
END package_name;
/
Explanation:
- The “CREATE OR REPLACE PACKAGE BODY” statement is used to the create or replace the PL/SQL package body.
- The “package_name” is nothing but, it is the name of the package which is defined in the body.
- The “DECLARE” section is used to declare the variables, constants, types, cursors and etc.
- The “PROCEDURE”s and “FUNCTION”s are the subprograms in the body of the package.
- The “BEGIN” and “END” keywords are indicate the beginning and end of the execution sections in the functions, procedures, and the whole body of the package.
- If we want to terminate the body of the package, we must use forward slash ‘ / ‘ in a new line. It indicates the end of the SQL statement.
PL/SQL Package Body
A PL/SQL package body serves as an important component in developing modular and maintainable code within the Oracle database environment. It complements the package specification by providing the implementation details for procedures, functions, and other constructs declared in the package.
The package body organizes and modularizes code, hides data, and manages dependencies effectively. In this article, We will explore What is a Package Body, How to create a Package body, How to compile a Package Body along with real-life examples, and so on.
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