What is a view in SQL What is the use of a view?

Question

A VIEW in SQL Server is like a virtual table that contains data from one or multiple tables. It does not hold any data and does not exist physically in the database. Similar to a SQL table, the view name should be unique in a database. It contains a set of predefined SQL queries to fetch data from the database. 1 июл. 2019 г.

What is the use of view in SQL?

In SQL, a view is a virtual table based on the result-set of an SQL statement. A view contains rows and columns, just like a real table. The fields in a view are fields from one or more real tables in the database.

What is the use of view?

Views are usually virtual and do not occupy space in systems. Views enable us to hide some of the columns from the table. It simplifies complex queries because it can draw data from multiple tables and present it as a single table. It helps in data security that shows only authorized information to the users.

What is view and why we use view?

Views are used for security purposes because they provide encapsulation of the name of the table. Data is in the virtual table, not stored permanently. Views display only selected data. We can also use Sql Join s in the Select statement in deriving the data for the view.

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