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readMe.md

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-----Mongo DB-----

  1. Open Source document db
  2. NoSQL Database
  3. Collection used to hold documents
  4. Document : set of key-value pair JSON, dynamic schema ----RDBMS------ ----MONGODB-----------
  • Database Database
  • Table Collection
  • Tuple/Row Document
  • Column Field
  • Primary Key _id key (12 bytes hexadecimal number)

  1. Advantages of MongoDB

    • Schemaless
    • Faster
    • Scalable

    -------Mongoose : ODM Library---------

  2. Object Data Modelling Library for MongoDB And Nodejs

  3. Used to translate between object in node app and representation of those object in MongoDB

  4. Define Schema/structure for storing documents in a collection

    • Schema type (String,Number,Boolen)
    • Option (required,defualt...)

  5. Create Model similar to collection where we can store documents

  6. Install mongoose : npm i mongoose

  7. Define connection between mongoDb and Node using mongoose

    • create folder in server : DB folder
    • Create a js file to define connection
      • import mongoose