Page 60 - Modular_V2.0_SQL_Flipbook

Now let's consider the following Table-CUSTOMERS:

Table-CUSTOMERS

Customer_id Name City Transport

1 Raj Mumbai Bus
2 Priya Delhi Bus

3 Amit Bangalore Train
4 Neha Chennai Flight

5 Sanjay Hyderabad Train

CREATE VIEW BUS_ROUTERS AS SELECT Name, City
FROM CUSTOMERS
WHERE Transport = 'Bus';

Here, a view named as BUS_ROUTERS will be created and the result set having records who use
Bus will be displayed.

Select * from BUS_ROUTERS;
It will show the names and city of people who avail Bus service.
+-------+--------+
| Name | City |
+-------+--------+
| Raj | Mumbai |
+-------+--------+
| Priya | Delhi |
+-------+--------+

Let's create two new tables, PRODUCTS and SALES, and then create a view called PRODUCT_SALES
using an equi join based on the common column Product_id.

Table-PRODUCTS
Product_id Product_name Price
101 Laptop 50000
102 Smartphone 15000
103 Headphones 2500

104 Keyboard 1500

Table-SALES

Sale_id Product_id Quantity Discount
201 101 5 500
202 102 10 1000
203 103 15 200
204 104 8 100

CREATE VIEW PRODUCT_SALES AS

SELECT PRODUCTS.Product_name, PRODUCTS.Price, SALES.Quantity, SALES.Discount
FROM PRODUCTS, SALES

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