PL/SQL (Procedural Language/Structured Query Language) plays a crucial role in Oracle Database systems as it serves several important purposes. Here is an in-depth explanation of the purpose of PL/SQL in Oracle Database systems:
1. Database Interaction and Data Manipulation: PL/SQL allows developers to interact with the Oracle Database by executing SQL statements. It provides a procedural programming language framework to perform data manipulation operations, such as querying, inserting, updating, and deleting data from database tables. With PL/SQL, complex data manipulation tasks can be efficiently performed within the database itself, minimizing data transfer between the application and the database server.
2. Business Logic Implementation: PL/SQL enables the implementation of business logic and rules within the database. It allows developers to define and encapsulate complex business logic as stored procedures, functions, triggers, and packages. These program units can be executed directly within the database, providing a secure and efficient means to enforce business rules, perform calculations, apply data validation, and ensure data integrity at the database level.
3. Transac....
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