78 lines
2.6 KiB
Markdown
78 lines
2.6 KiB
Markdown
---
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title: SQL Right Join
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---
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## SQL Right Join
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### Example of use
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For this guide we'll discuss the SQL RIGHT JOIN.
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### Right Join
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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.
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```sql
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SELECT *
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FROM table1
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RIGHT JOIN table2
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ON table1.column_name = table2.column_name;
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```
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### Complete table listings for reference
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foods or LEFT table data
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```text
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+---------+--------------+-----------+------------+
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| ITEM_ID | ITEM_NAME | ITEM_UNIT | COMPANY_ID |
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+---------+--------------+-----------+------------+
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| 1 | Chex Mix | Pcs | 16 |
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| 6 | Cheez-It | Pcs | 15 |
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| 2 | BN Biscuit | Pcs | 15 |
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| 3 | Mighty Munch | Pcs | 17 |
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| 4 | Pot Rice | Pcs | 15 |
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| 5 | Jaffa Cakes | Pcs | 18 |
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| 7 | Salt n Shake | Pcs | |
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+---------+--------------+-----------+------------+
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```
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company or RIGHT table data
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``` text
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+------------+---------------+--------------+
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| COMPANY_ID | COMPANY_NAME | COMPANY_CITY |
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+------------+---------------+--------------+
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| 18 | Order All | Boston |
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| 15 | Jack Hill Ltd | London |
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| 16 | Akas Foods | Delhi |
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| 17 | Foodies. | London |
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| 19 | sip-n-Bite. | New York |
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+------------+---------------+--------------+
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```
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To get company name from company table and company ID, item name columns from foods table, the following SQL statement can be used:
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```sql
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SELECT company.company_id,company.company_name,
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company.company_city,foods.company_id,foods.item_name
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FROM company
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RIGHT JOIN foods
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ON company.company_id = foods.company_id;
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```
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OUTPUT
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```text
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+------------+---------------+--------------+------------+--------------+
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| COMPANY_ID | COMPANY_NAME | COMPANY_CITY | COMPANY_ID | ITEM_NAME |
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+------------+---------------+--------------+------------+--------------+
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| 18 | Order All | Boston | 18 | Jaffa Cakes |
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| 15 | Jack Hill Ltd | London | 15 | Pot Rice |
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| 15 | Jack Hill Ltd | London | 15 | BN Biscuit |
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| 15 | Jack Hill Ltd | London | 15 | Cheez-It |
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| 16 | Akas Foods | Delhi | 16 | Chex Mix |
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| 17 | Foodies. | London | 17 | Mighty Munch |
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| NULL | NULL | NULL | NULL | Salt n Shake |
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+------------+---------------+--------------+------------+--------------+
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```
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