MySQL LEFT JOIN allows you to get result set from two or more tables for certain matches.
Suppose you have two tables i.e. A and B. So if you join A to B using left join then all rows from the A tables will be displayed with matches a row from the B table.
Example of MySQL LEFT JOIN:
SELECT user.name, course.name FROM `user` LEFT JOIN `course` on user.course = course.id;
Here all rows from user tables will be displayed and only matches rows will be displayed from order table.
Read Also: Compare two tables in MySQL
Lets see below example:
`user` table –
| id | name | course |
|---|---|---|
| 1 | A | 1 |
| 2 | B | 2 |
| 3 | C | 2 |
| 4 | D | 5 |
| 5 | E | (NULL) |
`course` table –
| id | name |
|---|---|
| 1 | HTML |
| 2 | CSS |
| 3 | JavaScript |
| 4 | PHP |
| 5 | Ajax |
So, the result will be:
| user.name | course.name |
|---|---|
| A | HTML |
| B | CSS |
| C | CSS |
| D | Ajax |
| E | (NULL) |
Namaste UI collaborates closely with clients to develop tailored guest posting strategies that align with their unique goals and target audiences. Their commitment to delivering high-quality, niche-specific content ensures that each guest post not only meets but exceeds the expectations of both clients and the hosting platforms. Connect with us on social media for the latest updates on guest posting trends, outreach strategies, and digital marketing tips. For any types of guest posting services, contact us on info[at]namasteui.com.