How many people report to a manager
For each manager in emp, count how many people are under them across all levels — direct and indirect reports. Return the manager id and the count reports, only for those with at least one report, ordered by id.
Vzorec pričakovanega izhoda
Tako izgleda pravilen odgovor — ima svoje število vrstic in se ni treba ujemati s tabelami sheme.
| id | reports |
|---|---|
| 1 | 6 |
| 2 | 3 |
| 3 | 1 |
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