## Customers

customer_id | first_name | last_name | email | phone_number
--- | --- | --- | --- | ---
1 | John | Doe | john@example.com | +123456789
2 | Jane | Smith | jane@example.com | +098765432
3 | Alice | Brown | alice@example.com | +987654321
4 | Charlie | White | charlie@example.com | +135792468
5 | David | Black | david@example.com | +246801753

## Accounts

account_id | customer_id | balance
--- | --- | ---
| (→ Customers.customer_id) |
1 | 1 | 1000.0
2 | 2 | 5000.0
3 | 3 | 7500.0
4 | 4 | 2500.0
5 | 5 | 1500.0

## Loans

loan_id | banktype_id | amount | credit | start_date | end_date
--- | --- | --- | --- | --- | ---
| (→ BankType.banktype_id) |  |  |  |
1 | 1 | 10000.0 | 10000.0 | 2022-01-01 | 2023-01-01
2 | 1 | 5000.0 | 5000.0 | 2022-01-15 | 2023-01-15
3 | 2 | 10000.0 | 10000.0 | 2022-02-01 | 2023-02-01
4 | 2 | 5000.0 | 5000.0 | 2022-02-15 | 2023-02-15
5 | 3 | 7500.0 | 7500.0 | 2022-03-01 | 2023-03-01

## BankType

banktype_id | finance_organization | description
--- | --- | ---
1 | Formal Banks | Traditional financial institutions.
2 | Microfinance Institutions | Small scale lenders focused on underprivileged communities.
3 | Credit Unions | Not-for-profit financial cooperatives.
4 | Investment Banks | Institutions primarily involved in raising capital.
5 | Central Banks | Government-owned banks responsible for monetary policy.