Page 59 - Modular_V2.0_SQL_Flipbook

Output:
+------------+--------------+-----------+
| Staff_name | Learner_name | Location |
+------------+--------------+-----------+
| Rohit | Aarav | Mumbai |
+------------+--------------+-----------+
| Amisha | Meera | Delhi |
+------------+--------------+-----------+
| Neha | NULL | Bangalore |
+------------+--------------+-----------+
2. Right Outer Join (RIGHT JOIN): It shows all rows from the right RIGHT JOIN
table and the matching rows from the left table. If there is no match,
it shows NULL for the left table’s columns.
Table 1 Table 2
Syntax:

SELECT table1.column1, table2.column2
FROM table1
RIGHT JOIN table2

ON table1.common_column = table2.common_column;

Example using tables: STAFF and LEARNERS
SELECT STAFF.Staff_name, LEARNERS.Learner_name, STAFF.Location

FROM STAFF
RIGHT JOIN LEARNERS

ON STAFF.Staff_id = LEARNERS.Learner_id;
Hands On
Output:
+------------+--------------+----------+
| Staff_name | Learner_name | Location | Write a query to retrieve the
+------------+--------------+----------+
| Rohit | Aarav | Mumbai | names of customers and the
+------------+--------------+----------+ products they ordered from
| Amisha | Meera | Delhi |
+------------+--------------+----------+ the Customers and Orders
| NULL | Rahul | NULL |
+------------+--------------+----------+ tables.

VIEWS

A view is a virtual table created based on one or more tables. A view has rows and columns like
a normal table in a database, but it does not store data itself. Instead, it displays data stored in
underlying tables. A view is created using the CREATE VIEW command.

Syntax:
CREATE VIEW view_name AS

SELECT column1, column2
FROM table_name
WHERE condition;

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Advanced Features of MySQL