Each employee's level in the hierarchy
In the org chart emp (employee → manager via manager_id), compute each one's level: the topmost (no manager) is level 1, their reports are 2, and so on down. Return id and depth, ordered by id.
Vzorec pričakovanega izhoda
Tako izgleda pravilen odgovor — ima svoje število vrstic in se ni treba ujemati s tabelami sheme.
| id | depth |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
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