It can be used to modify the data .

SQL UPDATE Syntax

UPDATE table_name SET column1=value WHERE some_column=some_value ;

MySQL Table – users

+—-+——+
| id | name |
+—-+——+
|  1 | PHP  |
|  2 | JS   |
|  3 | HTML |
|  4 | PHP  |
|  5 | AS   |
+—-+——+

Example

mysql> UPDATE users SET name=’ASP’ WHERE id=5;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> select * from users  ;
+—-+——+
| id | name |
+—-+——+
|  1 | PHP  |
|  2 | JS   |
|  3 | HTML |
|  4 | PHP  |
|  5 | ASP  |
+—-+——+
5 rows in set (0.00 sec)