![Insert Document
db.COLLECTION_NAME.insert(document)
db.mycol.insert({
_id: ObjectId(7df78ad8902c),
title: 'MongoDB Overview',
description: 'MongoDB is no sql database',
tags: ['mongodb', 'database', 'NoSQL'],
likes: 100
})](https://image.slidesharecdn.com/mongopresentation-160406060252/85/Introduction-to-MongoDB-15-320.jpg)
Introduction to MongoDB
- 2. Developed by 10gen in 2007 Published as GNU Affero General Public License and the Apache License
- 3. What is mongoDB? Open Source Document Oriented database Cross- Platform No - SQL
- 4. Document Oriented vs Relational Databases Schema less : MongoDB is document database in which one collection holds different different documents. Number of fields, content and size of the document can be differ from one document to another. Structure of a single object is clear No complex joins Deep query-ability. MongoDB supports dynamic queries on documents using a document- based query language that's nearly as powerful as SQL Tuning Ease of scale-out: MongoDB is easy to scale Conversion / mapping of application objects to database objects not needed Uses internal memory for storing the (windowed) working set, enabling faster access of data
- 5. RDBMS mongoDB Database Database Table Collection Tuple/Row Document column Field Table Join Embedded Documents Primary Key Primary Key (Default key _id provided by mongodb itself)
- 6. Features Ad hoc queries Indexing Replication Load balancing File storage Aggregation Server-side JavaScript execution Capped collections
- 10. Sharding
- 11. Replication
- 12. Document Storage Document are stored in BSON(Binary JSON) BSON - binary serialization of json like objects. Any valid JSON can easily imported and queried. MongoDB understand JSON natively.
- 13. Create Database use DATABASE_NAME db – show currently selected database. show dbs – output database list
- 14. Create Collection db.createCollection(name, options) db.createCollection( "mycol", { capped : true, autoIndexID : true, Size : 6142800, max : 10000 } )
- 15. Insert Document db.COLLECTION_NAME.insert(document) db.mycol.insert({ _id: ObjectId(7df78ad8902c), title: 'MongoDB Overview', description: 'MongoDB is no sql database', tags: ['mongodb', 'database', 'NoSQL'], likes: 100 })
- 17. Indexing db.COLLECTION_NAME.ensureIndex({KEY:1}) db.mycol.ensureIndex({"title":1,"description":-1})
- 18. Demo
- 19. Non-Functional Features Easy readability High performance High availability Easy scalability Aggregation Stores data as documents or objects (everyone works with objects)
- 20. Disadvantages or less good at ???? High transactions Problems that require SQL
- 22. Where to use ??? Big Data Content Management and Delivery Mobile and Social Infrastructure User Data Management Data Hub
- 24. Thank You!