Kiwango cha 6.4 cha Kikokotoo cha SQL
Meza zilizopewa:
| id | name | hire_date |
|---|---|---|
| 1 | John | 2020-01-01 |
| 2 | Max | 2021-01-01 |
| 3 | Evans | 2023-01-01 |
| 4 | Andrew | 2019-01-01 |
| id | order_id | employee_id | order_date | total_amount |
|---|---|---|---|---|
| 1 | 31231 | 1 | 2023-10-10 | 5400 |
| 2 | 32131 | 2 | 2022-10-10 | 10000 |
| 3 | 54353 | 3 | 2021-10-10 | 5432 |
| 4 | 65543 | 4 | 2018-12-25 | 4444 |
| 5 | 54949 | 1 | 2017-07-31 | 3111 |
| 6 | 34029 | 1 | 2016-07-14 | 4322 |
Tatua matatizo yafuatayo kwa ajili yao:
Kutayarisha orodha ya wafanyikazi na idadi ya maagizo ambayo wameshughulikia.
Hesabu idadi ya maagizo yaliyoshughulikiwa na kila mfanyakazi katika mwezi fulani.
