| id | bank_type |
|---|---|
| 1 | Central Bank |
| 2 | Commercial Bank |
| id | country_name |
|---|---|
| 1 | USA |
| 2 | UK |
| id | name | type_id | country_id |
|---|---|---|---|
| (→ Types_of_banks.id) | (→ Countries.id) | ||
| 1 | Federal Reserve | 1 | 1 |
| 2 | Bank of England | 1 | 2 |
| 3 | Citibank | 2 | 1 |
| 4 | Barclays | 2 | 2 |
| id | first_name | last_name | birthdate | account_number | bank_id |
|---|---|---|---|---|---|
| (→ Accounts.id) | (→ Banks.id) | ||||
| 1 | John | Doe | 1980-01-01 | 1 | 1 |
| 2 | Jane | Smith | 1985-05-15 | 2 | 2 |
| id | balance | customer_id |
|---|---|---|
| (→ Customers.id) | ||
| 1 | 1000.0 | 1 |
| 2 | 2000.0 | 2 |