What are the benefits of using MySQL views compared to selecting data directly from MySQL base tables?

As we know, a view is a definition that is built on top of other tables or views and stored in the database. Compared with selecting data directly from MySQL base tables, the benefits of using MySQL views are as follows:

Simplified data access

• Using views can simplify data access for the following reasons:
• You can use views to perform calculations and display the results. For example, you can display summaries using a view definition that calls an aggregate function.
• With views, we can select a restricted set of rows, or only a subset of the table, with an appropriate WHERE clause.
• With views, we can select data from multiple tables using joins or unions.

By using views, the above operations can be performed automatically.

Improving data security

We can use views to display user-specific content, which improves security because no user is able to access or modify data related to other users.

Reduce data noise

Views do not display extraneous columns, so they reduce data noise.

Preserve the appearance of the original table structure

Views can preserve the appearance of the original table structure to minimize interference with other applications. This is useful if we want to change the structure of the table to suit some application.

Implement all queries

All queries can be implemented on the view just like they are implemented on the base table. Basically, we can use any clause in the view and the view can be used in INSERT/UPDATE/DELETE. We can create views of other views.

The above is the detailed content of What are the benefits of using MySQL views compared to selecting data directly from MySQL base tables?. For more information, please follow other related articles on the PHP Chinese website!