Introduction to Mongodb Cheat Sheet
MongoDB is a popular NoSQL database known for its flexibility and scalability. Key commands in a MongoDB cheat sheet include:
Insert Documents:
db.collection.insertOne({})
ordb.collection.insertMany([{}])
.Query Documents: Use
db.collection.find({})
to retrieve documents. Apply filters like{field: value}
.Update Documents:
db.collection.updateOne({filter}, { $set: { field: value } })
ordb.collection.updateMany()
.Delete Documents:
db.collection.deleteOne({})
ordb.collection.deleteMany({})
.Aggregation: Utilize
db.collection.aggregate([{ $match: {} }, { $group: {} }])
for complex data operations.Indexing: Create indexes using
db.collection.createIndex({ field: 1 })
to improve query performance.
These commands help manage and manipulate data efficiently in MongoDB.