Regular Views
Regular Views are a fundamental concept in relational database management systems (RDBMS) that allow users to create virtual tables based on the result of a predefined SQL query. They simplify complex queries, enhance data security by restricting access to specific columns or rows, and provide an abstraction layer over underlying tables. Unlike materialized views, regular views do not store data physically; they dynamically generate results each time they are queried.
Developers should use regular views to encapsulate complex joins, aggregations, or filtering logic, making queries more readable and maintainable in applications. They are essential for implementing row-level or column-level security in databases, such as hiding sensitive data from unauthorized users. For example, in a multi-tenant SaaS application, views can filter data by tenant ID to ensure data isolation.