how to use where multiple condition in sql without using and or code example

Example 1: where sql multiple conditions

SELECT *
FROM suppliers
WHERE (state = 'California' AND supplier_id <> 900)
OR (supplier_id = 100);

Example 2: sql query with multiple where conditions

SQL> SELECT ID, NAME, SALARY 
FROM CUSTOMERS
WHERE SALARY > 2000 OR age < 25;

Example 3: sql query with multiple where conditions

+----+----------+----------+
| ID | NAME     | SALARY   |
+----+----------+----------+
|  3 | kaushik  |  2000.00 |
|  4 | Chaitali |  6500.00 |
|  5 | Hardik   |  8500.00 |
|  6 | Komal    |  4500.00 |
|  7 | Muffy    | 10000.00 |
+----+----------+----------+