By using db<>fiddle, you agree to license everything you submit by Creative Commons CC0.
| serial_number | product_type | customer_count |
|---|---|---|
| 3222333 | Camera | 3 |
| 3322322 | InstaCam | 0 |
| 4332233 | InstaCam | 0 |
| serial_number | product_type | customer_count |
|---|---|---|
| 3222333 | Camera | 3 |
| 3322322 | InstaCam | 0 |
| 4332233 | InstaCam | 0 |