75. Tashkilot ierarxiyasi: har kimning darajasi
O'rtachaTashkilotda rahbar manager_id orqali ko'rsatiladi. Eng yuqori rahbarda
manager_id — NULL.
Har bir xodimning ierarxiyadagi darajasini hisoblang: eng yuqori rahbar — 1,
uning bevosita qo'l ostidagilar — 2 va hokazo.
Ustunlar: name, level.
Saralash: level o'sish, keyin name alifbo.
Jadval: employees
| Ustun | Turi |
|---|---|
| id | INT PK |
| name | VARCHAR |
| manager_id | INT NULL |
Namuna ma'lumotlar
sample
employees
| idINT | nameVARCHAR(60) | manager_idINT |
|---|---|---|
| 1 | Aziz Karimov | NULL |
| 2 | Nilufar Rahimova | 1 |
| 3 | Bekzod Tursunov | 2 |
Kutilgan natija
| name | level |
|---|---|
| Aziz Karimov | 1 |
| Nilufar Rahimova | 2 |
| Bekzod Tursunov | 3 |
sample-full
employees
| idINT | nameVARCHAR(60) | manager_idINT |
|---|---|---|
| 1 | Aziz Karimov | NULL |
| 2 | Nilufar Rahimova | 1 |
| 3 | Bekzod Tursunov | 2 |
| 4 | Malika Yusupova | 1 |
| 5 | Sardor Nazarov | 2 |
| 6 | Dilnoza Ergasheva | 3 |
| 7 | Jasur Qodirov | 4 |
| 8 | Kamola Saidova | NULL |
| 9 | Otabek Mirzayev | 8 |
| 10 | Zilola Hamidova | 6 |
| 11 | Rustam Aliyev | 9 |
| 12 | Feruza Sobirova | 5 |
Kutilgan natija
| name | level |
|---|---|
| Aziz Karimov | 1 |
| Kamola Saidova | 1 |
| Malika Yusupova | 2 |
| Nilufar Rahimova | 2 |
| Otabek Mirzayev | 2 |
| Bekzod Tursunov | 3 |
| Jasur Qodirov | 3 |
| Rustam Aliyev | 3 |
| Sardor Nazarov | 3 |
| Dilnoza Ergasheva | 4 |
| Feruza Sobirova | 4 |
| Zilola Hamidova | 5 |
sample-extra
employees
| idINT | nameVARCHAR(60) | manager_idINT |
|---|---|---|
| 1 | Otabek Tursunov | NULL |
| 2 | Bekzod Yusupov | 1 |
| 3 | Zafar Ismoilov | NULL |
| 4 | Malika Ergasheva | 1 |
| 5 | Bobur Aliyev | 2 |
Kutilgan natija
| name | level |
|---|---|
| Otabek Tursunov | 1 |
| Zafar Ismoilov | 1 |
| Bekzod Yusupov | 2 |
| Malika Ergasheva | 2 |
| Bobur Aliyev | 3 |
O'xshash masalalar
Konsol
Natijani ko'rish uchun so'rovni ishga tushiring.