Mongodb Tutorial
Learn Mongodb interactively. Read the concept and write code to practice.
1. MongoDB Introduction
MongoDB is a document database designed for ease of development and scaling. It...
2. Create Database & Collection
**Create Database** In MongoDB, you don't explicitly create a database. When you...
3. Insert Document
To insert data into a MongoDB collection, you use the `insertOne()` or `insertMa...
4. Find (Query) Documents
To select data from a collection in MongoDB, we can use the `find()` method. - ...
5. Query Operators
MongoDB provides several query operators to specify more complex conditions. Co...
6. Logical Operators
MongoDB provides logical operators that allow you to combine multiple conditions...
7. Update Document
To update documents in a collection, you can use `updateOne()` or `updateMany()`...
8. Delete Document
To delete documents from a collection, use `deleteOne()` or `deleteMany()`. - `...
9. Sort & Limit
When querying data, you might want to sort the results or limit the number of do...
10. Projection
In MongoDB, projection means selecting only the necessary data rather than selec...
11. Array Updates
MongoDB provides specific operators to update arrays inside documents. - `$push...
12. Aggregation Pipeline
Aggregation operations process multiple documents and return computed results. ...