What is a View?
Published July 23, 2025
By Sai Sree Ram Gundepudi
What is a View?
A view is a virtual table based on the result of a SELECT query. It does not store data itself.
Use Cases:
- Hide sensitive columns
- Pre-define complex joins or aggregations
- Simplify access for end users
Example:
CREATE VIEW emp_summary AS
SELECT department_id, AVG(salary) AS avg_sal
FROM employees GROUP BY department_id;