It is used with the like operator to compare the values of the type similar.

It support two wildcards type

1. The percent sign (%)- It match to one or more character.

2. The underscore (_)- It match to one character.

The percent sign represents zero, one, or multiple characters. The underscore represents a single number or character. The symbols can be used in combinations.

SELECT FROM table_name WHERE column LIKE 'XXXX%' 
or
 SELECT FROM table_name WHERE column LIKE '%XXXX%' 
or
 SELECT FROM table_name WHERE column LIKE 'XXXX_' 
or
 SELECT FROM table_name WHERE column LIKE '_XXXX'
or
 SELECT FROM table_name WHERE column LIKE '_XXXX_'

ex

+----+----------+-----+-----------+----------+
| ID | NAME     | AGE | ADDRESS   | SALARY   |
+----+----------+-----+-----------+----------+
|  1 | Ramesh   |  32 | Ahmedabad |  2000.00 |
|  2 | Khilan   |  25 | Delhi     |  1500.00 |
|  3 | kaushik  |  23 | Kota      |  2000.00 |
|  4 | Chaitali |  25 | Mumbai    |  6500.00 |
|  5 | Hardik   |  27 | Bhopal    |  8500.00 |
|  6 | Komal    |  22 | MP        |  4500.00 |
|  7 | Muffy    |  24 | Indore    | 10000.00 |
+----+----------+-----+-----------+----------+

SQL> SELECT * FROM CUSTOMERS WHERE SALARY LIKE '200%';

The result is it

+----+----------+-----+-----------+----------+
| ID | NAME     | AGE | ADDRESS   | SALARY   |
+----+----------+-----+-----------+----------+
|  1 | Ramesh   |  32 | Ahmedabad |  2000.00 |
|  3 | kaushik  |  23 | Kota      |  2000.00 |
+----+----------+-----+-----------+----------+