MongoDB-SESSION02
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This document provides an overview of MongoDB and MongoDB Atlas. It discusses that MongoDB is a NoSQL document database that stores data in JSON-like documents within collections, rather than in tables. It also describes MongoDB Atlas as a fully managed cloud database service for MongoDB that handles deployment and maintenance of MongoDB clusters and replica sets. The document contains quizzes to test understanding of MongoDB concepts like documents, collections, and how MongoDB Atlas relates to the MongoDB database.
MongoDB-SESSION02
- 1. Workshop @ Ramnshee Infotech By Jainul Musani SESSION:02 2
- 2. Journy of MongoDB starts Now. What MongoDB ? Tools We are going to use How to work with MongoDB How to organize data in database, How to query How to write to database Data modeling Indexing SESSION:02
- 3. Journy of MongoDB starts Now. Practice Exercises Assignments Quiz SESSION:02
- 4. What is database - MongoDB? A database, meaning a structured way to store and access data. Tables are used to store data in database in RDBMS Storing data in Row and Columns i.e. Library CArd, List of employees etc. MongoDB is a NoSQL document database. No legacy approach of data. SESSION:02
- 5. What is database - MongoDB? Records / information stored in document (json) Data stored in organized way but not in the form of R/C These documents are in turn stored in what we call collections of documents. Documents together in a collection. SESSION:02
- 6. Quick – QUIZ -1 Why is MongoDB a NoSQL database? Because it does not utilize tables, rows and columns to organize data Because it uses a structured way to store and access data SESSION:02
- 7. What is Document in MongoDB A document is a way to organize and store data as a set of field-value pairs. { <field> : <value>, <field> : <value>, name : ‘Laxami’, title : ‘Team Lead’, age : 26 } SESSION:02 <field> – unique identifier for some data point <value> – data related to the given identifier
- 8. What is Collection in MongoDB A collection is an organized store of documents SESSION:02 { name : ‘Laxami’, title : ‘Team Lead’, age : 26 } { name : ‘Ravi’, title : ‘Developer’, age : 37 } { name : ‘Surbhi’, title : ‘Asst. HR’, age : 29 }
- 9. Quick – QUIZ -2 Select the statements that together help build the most complete definition of the MongoDB database: The MongoDB database is an organized way to store and access data. MongoDB database organizes documents in rows and columns. MongoDB's database uses tables of related data. MongoDB is a NoSQL database that uses documents to store data in an organized way. SESSION:02
- 10. Quick – QUIZ -3 In MongoDB how does a document relate to a collection? Collections consist of one or many documents. Collections are tables of documents and other collections. Documents are made up of collections. Collections are documents that are organized in rows and columns. SESSION:02
- 11. Quick – QUIZ -4 In a MongoDB Document what is the role of fields and values? Values do not have to be attached to fields, and can be stand alone data points. A field is a unique identifier for a specific datapoint. Each field has a value associated with it. SESSION:02
- 12. What is MongoDB Atlas ? Atlas cloud database is fully managed database with wide range of services In center its MongoDB use Atlas for data storage and retrieval, analyze, export and build applications with your data. Many different services and tools available in Atlas. SESSION:02
- 13. What is MongoDB Atlas ? Atlas users can deploy CLUSTERS (group of servers to store your data) This servers are configured in replica sets. Replica Set – few connected mongoDB instances store the SAME DATA. An instance is a single machine local or in the cloud running certain software or services. Benefit : something happened to a one instance of dataset, than also data remain intact and remain available from other replica set. SESSION:02
- 14. What is MongoDB Atlas ? Drawback of replica set: every time you update a document or collection will update the every replica set and redundant copy of data. It will overhead and slower the process. If you deploy your cluster, it will automatically be configured as a replica set. No need any expert skill to manage cluster and replica set for mongoDB. SESSION:02
- 15. MongoDB Atlas Services Atlas manages the details of managing the cluster creations. Simplifies the operational overhead of running and maintain database deployment. It includes deployment over cloud provides and local With Atlas experiment and deployment of new mongoDB tools are very easy. SESSION:02
- 16. MongoDB Atlas Services Atlas services are paid, different charges to be paid for different service packages. Atlas free tier – allow to deploy free cluster 3 – server replica set 512 MB storage Never expire Sub-set of other services i.e. Charts Use the MongoDB Admin Course to know how to deploy / configure and maintain locally SESSION:02
- 17. Quick – QUIZ -5 How is MongoDB Atlas related to MongoDB the Database? Atlas is a MongoDB service that can work with any database, but in this course it will be used with MongoDB. Atlas has many tools and services within it that are built specifically for the MongoDB Database. They both are MongoDB products. MongoDB Database has the same functionality as Atlas, but without the friendly user interface. SESSION:02