MongoDB, the most popular (no SQL) database for modern apps and this is time to learn skills that are in demand of the market. If you are a beginner and want to learn MongoDB. you can start from this app, no previous knowledge is required. You can learn MongoDB from this app anytime, anywhere . This app contains all the topics mentioned below:-

->Basic introduction
->Key features
->MongoDB advantages
->Installing mongodb
->Data modelling in mongoDb
->Datatypes in mongoDB
->Create and Drop Database
->Create and drop collections
->CRUD operations
->Data relationships
->Indexing in Mongodb
->Sorting in MongoDb
->Aggregation in MongoDB
->Auto-Increment Sequence
->Data backup and Restoration
->Sharding in MongoDB

No need to search each topic throughout on the internet when you can have all of them in a single app.
Go download it without any second thought in your mind.