| Holat | # | Nomi | Qiyinlik | Yechilish |
|---|---|---|---|---|
| 0192 | Hech narsa olmagan mijozlar SQL left-join · subquery | Medium | 100% | |
| 0195 | Har bir kursga nechta talaba yozilgan SQL group-by · left-join | Medium | 100% |
| Holat | # | Nomi | Qiyinlik | Yechilish |
|---|---|---|---|---|
| 0192 | Hech narsa olmagan mijozlar SQL left-join · subquery | Medium | 100% | |
| 0195 | Har bir kursga nechta talaba yozilgan SQL group-by · left-join | Medium | 100% |