چیت‌شیت MongoDB و mongosh

1db.users.insertOne({ name: "Nina", role: "editor" })2db.users.insertMany([3  { name: "Arman", role: "author" },4  { name: "Sara", role: "reviewer" }5])

1db.users.findOne({ name: "Nina" })2db.users.find({ role: "editor" }).limit(20)

1db.users.updateOne(2  { _id: 42 },3  { $set: { role: "admin" }, $inc: { loginCount: 1 } }4)5db.users.updateOne(6  { email: "nina@example.com" },7  { $set: { name: "Nina" } },8  { upsert: true }9)

1db.users.updateMany(2  { active: false },3  { $set: { archived: true } }4)5db.users.replaceOne(6  { _id: 42 },7  { name: "Nina", role: "editor" }8)

1db.users.deleteOne({ _id: 42 })2db.users.deleteMany({ archived: true })

1db.auditLogs.insertOne(2  { event: "user.updated", userId: 42 },3  { writeConcern: { w: "majority", wtimeout: 5000 } }4)

1db.users.updateOne(2  { _id: 42 },3  {4    $addToSet: { tags: "mongodb" },5    $push: { events: { $each: ["login", "view"] } },6    $pull: { tags: "legacy" }7  }8)

1db.products.find({ price: { $gte: 10, $lt: 50 } })2db.products.find({ status: { $in: ["active", "pending"] } })

1db.orders.find({2  $or: [{ status: "new" }, { priority: { $gte: 5 } }]3})

1db.users.find(2  { active: true },3  { name: 1, email: 1, _id: 0 }4)

1db.orders.find({2  items: { $elemMatch: { sku: "A-7", quantity: { $gte: 2 } } },3  shippedAt: { $exists: false }4})

1db.products.find({ active: true })2  .sort({ createdAt: -1, _id: -1 })3  .skip(20)4  .limit(10)

1db.users.countDocuments({ active: true })2db.users.distinct("role", { active: true })

1db.orders.find({ status: "paid" }).readConcern("majority")

1db.orders.aggregate([2  { $match: { status: "paid" } },3  {4    $group: {5      _id: "$customerId",6      total: { $sum: "$amount" }7    }8  },9  { $sort: { total: -1 } }10])

1db.orders.aggregate([2  { $project: { customerId: 1, totalWithTax: { $multiply: ["$amount", 1.1] } } },3  { $limit: 50 }4])

1db.orders.aggregate([2  { $unwind: "$items" },3  { $group: { _id: "$items.sku", quantity: { $sum: "$items.quantity" } } }4])

1db.articles.createIndex({ title: "text", body: "text" })2db.articles.find(3  { $text: { $search: "database indexing" } },4  { score: { $meta: "textScore" } }5).sort({ score: { $meta: "textScore" } })

1db.orders.find({ status: "paid" })2  .explain("executionStats")

1db.users.createIndex({ email: 1 }, { unique: true })2db.orders.createIndex({ status: 1, createdAt: -1 })

1db.users.getIndexes()2db.users.dropIndex("email_1")

1db.createCollection("auditLogs", {2  capped: true,3  size: 1048576,4  max: 50005})

1db.sessions.createIndex(2  { expiresAt: 1 },3  { expireAfterSeconds: 0 }4)5db.users.createIndex(6  { email: 1 },7  { unique: true, partialFilterExpression: { email: { $exists: true } } }8)9db.users.getIndexes()

1db.orders.stats()2db.stats()

1// بررسی زمینه پیش از هر عملیات پاک‌سازی2db3show collections4// فقط پس از تأیید محیط و مجوز:5// db.temporaryCollection.drop()6// db.dropDatabase()

1rs.status()2rs.conf()

1sh.status()

1const changes = db.orders.watch([2  { $match: { operationType: "insert" } }3]);45changes.next();