调试中...
行 1，列 1
Transactions =
| transaction_id | customer_id | product_id | transaction_date | amount |
| -------------- | ----------- | ---------- | ---------------- | ------ |
| 1 | 101 | 1 | 2023-01-01 | 100 |
| 2 | 101 | 2 | 2023-01-15 | 150 |
| 3 | 102 | 1 | 2023-01-01 | 100 |
| 4 | 102 | 3 | 2023-01-22 | 200 |
| 5 | 101 | 3 | 2023-02-10 | 200 |
Products =
| product_id | category | price |
| ---------- | -------- | ----- |
| 1 | A | 100 |
| 2 | B | 150 |
| 3 | C | 200 |
[object Object]