How can we create a MySQL view with LEFT JOIN?

MySQLMySQLi Database

To illustrate the making of MySQL view with LEFT JOIN we are using the following data from ‘Customers’ and ‘Resreve’ tables −

mysql> Select * from customers;
+-------------+----------+
| Customer_Id | Name     |
+-------------+----------+
| 1           | Rahul    |
| 2           | Yashpal  |
| 3           | Gaurav   |
| 4           | Virender |
+-------------+----------+
4 rows in set (0.00 sec)

mysql> Select * from reserve;
+------+------------+
| ID   | Day        |
+------+------------+
| 1    | 2017-12-30 |
| 2    | 2017-12-28 |
| 2    | 2017-12-25 |
| 1    | 2017-12-24 |
| 3    | 2017-12-26 |
+------+------------+
5 rows in set (0.00 sec)

Now following query will create a view named ‘customer_VLeft’, using LEFT JOIN on the above-mentioned tables, which would have the names of the customers who have not made the reservation for any of the car.

mysql> Create view customer_Vleft AS SELECT NAME from customers LEFT JOIN RESERVE ON customer_id = id WHERE id IS NULL;
Query OK, 0 rows affected (0.13 sec)

mysql> Select * from customer_Vleft;
+----------+
| NAME     |
+----------+
| Virender |
+----------+
1 row in set (0.00 sec)
raja
Published on 22-Feb-2018 15:10:22
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