How does the interaction between RS-Bank components and PL/SQL occur — what is provided as input and what is returned as output?

Interaction between RS-Bank components and PL/SQL typically occurs through calls to stored procedures or functions in the database.

Parameters are passed to PL/SQL, which can be simple types (numbers, strings) or complex structures (e.g., records, tables). These parameters are sent from the RS-Bank component to perform business logic on the database side.

PL/SQL returns the execution result, which can be an operation status, a data set (e.g., a cursor with query results), or error messages.

Example:

• RS-Bank calls the stored procedure process_transaction with parameters: account number, amount, operation type.
• PL/SQL performs necessary checks and operations, then returns a result code and a message indicating success or failure.

This approach allows for separation of responsibilities: business logic and data reside in the database, while management and integration are handled in the RS-Bank application.