By using db<>fiddle, you agree to license everything you submit by Creative Commons CC0.
11 rows affected
| Roll | Subject | GroupId |
|---|---|---|
| 1 | Robots | 1 |
| 2 | Robots | 1 |
| 3 | Robots | 1 |
| 4 | Robots | 2 |
| 5 | Robots | 2 |
| 6 | Space | 2 |
| 7 | Space | 3 |
| 8 | Space | 3 |
| 9 | Space | 3 |
| 10 | Neurons | 4 |
| 11 | Neurons | 4 |