MongoDB is a NoSQL database that provides high performance, high availability, and easy scalability. It is document-oriented, which means it stores data in JSON-like documents with dynamic schemas.
- Ensure you have Homebrew installed on macOS or Chocolatey for Windows.
- Alternatively, you can download MongoDB directly from the MongoDB Download Center.
brew tap mongodb/brew
brew install mongodb-community@5.0
brew services start mongodb/brew/mongodb-communitybrew tap mongodb/brew
brew install mongodb-community@5.0
brew services start mongodb/brew/mongodb-communityRefer to the official MongoDB installation guide.
db.collection.insertOne({ name: "John", age: 30, city: "New York" });
db.collection.insertMany([{ name: "Jane", age: 25 }, { name: "Doe", age: 22 }]);db.collection.find({});
db.collection.find({ age: { $gt: 25 } });db.collection.updateOne({ name: "John" }, { $set: { age: 31 } });
db.collection.updateMany({ age: { $lt: 30 } }, { $set: { city: "San Francisco" } });db.collection.deleteOne({ name: "John" });
db.collection.deleteMany({ age: { $lt: 25 } });db.collection.createIndex({ name: 1 });
db.collection.createIndex({ age: -1 });The aggregation framework provides an efficient way to perform data analysis operations.
db.collection.aggregate([
{ $match: { status: "A" } },
{ $group: { _id: "$cust_id", total: { $sum: "$amount" } } },
{ $sort: { total: -1 } }
]);Replication provides redundancy and increases data availability. MongoDB achieves replication by applying operations on the primary to the secondary servers.
Sharding is a method for distributing data across multiple machines. MongoDB uses sharding to support deployments with very large data sets and high throughput operations.
- Use appropriate indexes to improve query performance.
- Monitor your databases regularly.
- Backup your data frequently.
- Use replica sets for high availability.
- Consider sharding for large datasets.
Contributions are welcome!