Exercise 7.4. Customers who used more than one outlet during the year.   [8 row(s)]
id    | name             | outlets | bills
------+------------------+---------+------
C0094 | Khadijah Hakim   | 3       | 62
C0059 | Ayu Suryadi      | 3       | 59
C0081 | Fadli Prakoso    | 3       | 56
C0056 | Gilang Nasution  | 3       | 51
C0090 | Farah Wijaya     | 3       | 49
C0164 | Nadia Zulkarnain | 3       | 49
C0111 | Hendro Ramadhan  | 3       | 46
C0022 | Vania Wirawan    | 3       | 41

