In SQL, a view is a virtual table that is derived from one or more tables. Views are used to simplify complex queries by providing a simplified and more focused perspective of the data. A create view can be thought of as a saved SQL query that can be accessed and manipulated like a table. In this way, views can make it easier to query the data and can simplify the process of updating data.

Creating a View in SQL:

To create a view in SQL, you can use the CREATE VIEW statement, followed by the name of the view and the SELECT statement that defines the view. Here is the basic syntax for creating a view:

CREATE VIEW view_name AS
SELECT column1, column2, ...
FROM table_name
WHERE condition;

In this syntax, view_name is the name of the view that you want to create. The AS keyword is used to specify that you are creating a view, and the SELECT statement defines the columns that will be included in the view.


Let’s say you have a table called employees with columns emp_id, first_name, last_name, salary, and department. You can create a view that only includes the emp_id, first_name, and salary columns with the following SQL code:

CREATE VIEW employee_info AS
SELECT emp_id, first_name, salary
FROM employees;

This will create a view called employee_info that only includes the emp_id, first_name, and salary columns from the employees table. You can then query the employee_info view just like you would any other table:

SELECT * FROM employee_info;

This will return all of the rows from the employee_info view, which will be the same as the rows in the employees table, but only with the emp_id, first_name, and salary columns.

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