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checkpoint-mongodb's Introduction

# Checkpoint MongoDB CRUD

## Commandes MongoDB

### Étape 1 - Afficher toute la liste de contacts

```bash
mongo
use contact
db.contactlist.find({})

Étape 2 - Afficher toutes les informations sur une seule personne par identifiant

# Remplacez "ID_de_la_personne" par l'_id réel de la personne concernée
var idPersonne = ObjectId("ID_de_la_personne");
db.contactlist.findOne({ _id: idPersonne })

Étape 3 - Afficher tous les contacts âgés de >18 ans

db.contactlist.find({ âge: { $gt: 18 } })

Étape 4 - Afficher tous les contacts avec un âge >18 et un nom contenant "ah"

db.contactlist.find({ $and: [{ âge: { $gt: 18 } }, { Nom: /ah/ }] })

Étape 5 - Changer le prénom du contact de « Kefi Seif » en « Kefi Anis »

db.contactlist.updateOne({ Prénom: "Seif" }, { $set: { Prénom: "Anis" } })

Étape 6 - Supprimer les contacts âgés de moins de <5 ans

db.contactlist.deleteMany({ âge: { $lt: 5 } })

Étape 7 - Afficher toute la liste de contacts après les modifications

db.contactlist.find({})

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