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Arbre

Université
2025-09-08 07:50:40 +02:00
parent 25556ef7ca
commit d2a96d0b8a
3 changed files with 11 additions and 3 deletions
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10
Arbres.md

@@ -38,7 +38,15 @@ CREATE TABLE familles (
### ###
## Nested Sets (modèle d’ensembles imbriqués) ## Nested Sets (modèle d’ensembles imbriqués)
Représentation intervallaire
## Materialized Path (chemin matérialisé) ## Materialized Path (chemin matérialisé)
## Représentation intervallaire Trouver tous les articles descendants d’une catégorie
```sql
SELECT a.name
FROM articles a
JOIN categories c ON a.category_id = c.id
WHERE c.path <@ 'Legumes.Racine';
```

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aggregation/regression.svg

@@ -14,7 +14,7 @@
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