A view is a virtual table based on the result set of an SQL statement. Views allow you to present data from one or more tables in a customized way without modifying the base tables. Views can be created using the CREATE VIEW statement by specifying the columns and tables to include. Views can also be dropped using the DROP VIEW statement or updated using the CREATE OR REPLACE VIEW command.

1. By : Dhirendra Chauhan

2. View
• 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.
“In SQL, a view is a virtual table based
on the result-set of an SQL
statement.”

3. CREATE VIEW Syntax
Syntax
CREATE VIEW view_name AS
SELECT column1, column2, ...
FROM table_name
WHERE condition;
Example
CREATE VIEW abc AS
SELECT Id, Name
FROM Employees
WHERE salary >600;

6. View

7. Dropping a View
“A view is deleted with the DROP VIEW command.”
Syntax
DROP VIEW view_name;
Example
DROP VIEW abc;

9. Updating a View
“A view can be updated with the CREATE OR REPLACE
VIEW command.”
Syntax
CREATE or REPLACE VIEW view_name AS
SELECT column1, column2, ...
FROM table_name
WHERE condition;
CREATE or REPLACE VIEW abc AS
SELECT Id, Name
FROM Employee
WHERE Salary>500;
Example

11. THANK
YOU