freeCodeCamp/guide/english/sql/sql-right-join-keyword/index.md

title
SQL Right Join

SQL Right Join

Example of use

For this guide we'll discuss the SQL RIGHT JOIN.

Right Join

The RIGHT JOIN keyword returns all records from the right table (table2), and the matched records from the left table(table1) . The result is NULL from the left side, when there is no match.

SELECT *
FROM table1
RIGHT JOIN table2
ON table1.column_name = table2.column_name;

Complete table listings for reference

foods or LEFT table data

+---------+--------------+-----------+------------+
| ITEM_ID | ITEM_NAME    | ITEM_UNIT | COMPANY_ID |
+---------+--------------+-----------+------------+
| 1       | Chex Mix     | Pcs       | 16         |
| 6       | Cheez-It     | Pcs       | 15         |
| 2       | BN Biscuit   | Pcs       | 15         |
| 3       | Mighty Munch | Pcs       | 17         |
| 4       | Pot Rice     | Pcs       | 15         |
| 5       | Jaffa Cakes  | Pcs       | 18         |
| 7       | Salt n Shake | Pcs       |            |
+---------+--------------+-----------+------------+

company or RIGHT table data

+------------+---------------+--------------+
| COMPANY_ID | COMPANY_NAME  | COMPANY_CITY |
+------------+---------------+--------------+
| 18         | Order All     | Boston       |
| 15         | Jack Hill Ltd | London       |
| 16         | Akas Foods    | Delhi        |
| 17         | Foodies.      | London       |
| 19         | sip-n-Bite.   | New York     |
+------------+---------------+--------------+

To get company name from company table and company ID, item name columns from foods table, the following SQL statement can be used:

SELECT company.company_id,company.company_name,
company.company_city,foods.company_id,foods.item_name
FROM   company
RIGHT JOIN foods
ON company.company_id = foods.company_id;

OUTPUT

+------------+---------------+--------------+------------+--------------+
| COMPANY_ID | COMPANY_NAME  | COMPANY_CITY | COMPANY_ID | ITEM_NAME    |
+------------+---------------+--------------+------------+--------------+
| 18         | Order All     | Boston       | 18         | Jaffa Cakes  |
| 15         | Jack Hill Ltd | London       | 15         | Pot Rice     |
| 15         | Jack Hill Ltd | London       | 15         | BN Biscuit   |
| 15         | Jack Hill Ltd | London       | 15         | Cheez-It     |
| 16         | Akas Foods    | Delhi        | 16         | Chex Mix     |
| 17         | Foodies.      | London       | 17         | Mighty Munch |
| NULL       | NULL          | NULL         | NULL       | Salt n Shake |
+------------+---------------+--------------+------------+--------------+