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What command is used to create a view in sql

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Release: 2024-05-01 22:09:41
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In SQL, use the CREATE VIEW statement to create a view. The syntax is: Named view: The view name is followed by AS to define the subquery: The AS keyword is followed by the subquery specified as the basis of the view

What command is used to create a view in sql

Commands to create views in SQL

In SQL, you can use the CREATE VIEW statement to create a view.

Syntax

##CREATE VIEW View nameAS Subquery

Steps

  1. Named view: Use viewname to specify the name of the view to be created.
  2. Define a subquery: Specify the subquery to be the basis of the view after the AS keyword. Subqueries can contain SELECT statements as well as other SQL operations.

Example

The following statement creates a view named

customer_view that contains the customer names and addresses in the customers table:

<code class="sql">CREATE VIEW customer_view AS
SELECT customer_name, address
FROM customers;</code>
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Note

    The view is just a virtualization of the underlying table data and does not store actual data.
  • Views can reference other views or tables.
  • Changing the data in the underlying table will also affect the data in the view.
  • Views can be used to improve performance because they can precompute the results of common queries.

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