## Customers

id | name | email
--- | --- | ---
1 | John Doe | johndoe@example.com
2 | Jane Smith | janesmith@example.com
3 | Michael Johnson | michaeljohnson@example.com
4 | Emily Davis | emilydavis@example.com
5 | David Brown | davidbrown@example.com

## Accounts

id | customerId | balance
--- | --- | ---
| (→ Customers.id) |
1 | 1 | 0.0
2 | 2 | 0.0
3 | 3 | 0.0
4 | 4 | 0.0
5 | 5 | 0.0

## Credit_Cards

id | accountId | cardNumber | expiryDate | securityCode | creditLimit
--- | --- | --- | --- | --- | ---
| (→ Accounts.id) |  |  |  |
1 | 1 | 1234567890123456 | 2023-12-31 | 123 | 5000.0
2 | 2 | 0987654321098765 | 2024-12-31 | 456 | 5000.0
3 | 3 | 1122334455667788 | 2025-12-31 | 789 | 5000.0
4 | 4 | 6655443322110099 | 2026-12-31 | 0 | 5000.0
5 | 5 | 9988776655443322 | 2027-12-31 | 111 | 5000.0

## Benefits

id | benefitName
--- | ---
1 | Rewards_Program
2 | Travel Insurance
3 | Extended Warranty
4 | Purchase Protection
5 | Price Protection

## Credit_Card_Benefits

id | creditCardId | benefitId
--- | --- | ---
| (→ Credit_Cards.id) | (→ Benefits.id)
1 | 1 | 1
2 | 2 | 1
3 | 3 | 1
4 | 4 | 1
5 | 5 | 1
6 | 5 | 4