How views can be created?

Question

Creating Views Views can be created from a single table, multiple tables or another view. To create a view, a user must have the appropriate system privilege according to the specific implementation. CREATE VIEW view_name AS SELECT column1, column2... FROM table_name WHERE [condition];

Why do we create the view?

A view can select certain columns and/or rows from a table (or tables), and permissions set on the view instead of the underlying tables. This allows surfacing only the data that a user needs to see.

What happens when you create a view?

What actually happens in the database when you create a view, and what happens when you use it? association with the underlying tables. In other words, creating a view does not generate a copy of the data, neither at the time the view is defined nor at the time the view is accessed.

What does create a view mean?

Purpose. Use the CREATE VIEW statement to define a view, which is a logical table based on one or more tables or views. A view contains no data itself. The tables upon which a view is based are called base tables.

How do views work database?

A database view is a subset of a database and is based on a query that runs on one or more database tables. Database views are saved in the database as named queries and can be used to save frequently used, complex queries. There are two types of database views: dynamic views and static views.

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