Creating a package specification

Creating a package specification in PL/SQL defines the interface to the package and which functionalities are provided by the packages. The specification of the package works as the connection between the package and its users and defines the procedure, function, types, variables, and exceptions that are accessible in public.

PL/SQL Package Specification

PL/SQL ( Procedural Language/Structural Query Language ) is the extension of SQL ( Structured Query Language ) which is allowed to the developers for creating the procedural logic along with the Oracle database. The package is one of the main key componentss of PL/SQL development.

The PL/SQL package is the group of the related procedures, functions, variables, and other bundled constructs for providing the modularity and organized approach to application development. In PL/SQL, the package specification gives the blueprint of the functionalities that are provided by the PL/SQL package.

It is defined by the interface along with the PL/SQL code which interacts with the package. It works like an API ( Application Program Interface ) that defines how the external programs can interact with the software library.

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Creating a package specification

Creating a package specification in PL/SQL defines the interface to the package and which functionalities are provided by the packages. The specification of the package works as the connection between the package and its users and defines the procedure, function, types, variables, and exceptions that are accessible in public....

Step-by-step process to creating a specification of the package

Step 1: Create Package specification...

Compilation of a package

Compilation of the package in PL/SQL is the process of transforming the specification of the package and body of the package into the format which is Oracle database can be efficiently executed. This process verifies the syntax and the semantics of the PL/SQL code and resolves any references to the objects of other databases and it will generate the necessary executable code. Now we can discuss the steps which are involved in the package compilation....

Package State

The package state refers to the present status or a condition of the PL/SQL package within the session of the database. Understanding the package state plays a crucial role in managing the behavior and package lifecycle....

Conclusion

In summary, the PL/SQL package specification worked as a vital component in the development of the database, providing the structured and modular approach to organizing and encapsulating code in the Oracle databases. The package specification allowed the developers to set related procedures, functions, types, variables, and exceptions together in a single logic unit. It is defined as the interface with other PL/SQL code that can interact with the package....

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