By using db<>fiddle, you agree to license everything you submit by Creative Commons CC0.
section | sub_section | category |
---|---|---|
1 | A | Foo |
1 | B | 123 |
2 | A | Bar |
3 | A | 123 |
3 | B | Bar |
4 | A | Foo |
section | sub_section | category |
---|---|---|
1 | A | Foo |
1 | B | 123 |
2 | A | Bar |
3 | A | 123 |
3 | B | Bar |
4 | A | Foo |