DROP VIEW

PL/SQL UPDATE VIEW

View in Oracle Database is a logical table that can be regarded as a virtual table that joins data from one or more tables. Views provide an easy way to query and display data, but they are usually only good for something that is read-only when it is implemented. In PL/SQL, developers can change views which, in turn, can allow for an up-to-the-minute update of data presented through the views upgrading. The UPDATE VIEW statement in PL/SQL provides the medium for such updates by triggering important changes in the base tables when necessary....

Example of PL/SQL UPDATE VIEW

-- Developing the 'employees' tableCREATE TABLE employees (employee_id INT,first_name VARCHAR(50),last_name VARCHAR(50),department VARCHAR(50),salary INT);-- Inputting dummy data into the 'employees' tableINSERT INTO employees (employee_id, first_name, last_name, department, salary) VALUES(1, 'Alice', 'Smith', 'Sales', 50000),(2, 'Bob', 'Johnson', 'Marketing', 60000),(3, 'Charlie', 'Brown', 'IT', 70000),(4, 'David', 'Lee', 'Finance', 55000);...

DROP VIEW

Suppose we have the employee_view view created earlier. We can drop it using the following command:...

Conclusion

To sum up, the UPDATE VIEW statement in Oracle Database using PL/SQL allows the developers to dynamically edit data presented through views, which provides flexibility for the data manipulation tasks. By updating views, changes are sent to base tables resulting in keeping data consistent. As a result, this function helps to streamline the database management process and make developers’ jobs easier....