07 Document Databases

Document databases deviate from the entity-based denormalized data model of relational dbs and prefer an approach based on denormalized and aggregated data typical of business document. A document is…

MongoDB is a document-oriented database that stores data within: Documents : consist of key-value pairs which are the basic unit of data in MongoDB. Collections contain sets of documents. Databases…

Create Create a database: use database_name Create a collection: db.createCollection(name, options) MongoDB provides two methods to create new documents. db.collection.insertOne(document) inserts one…

2021 06 22 Q2 (6 points) A dedicated online review and social networking system tracks the activities of customers of hotels, including their stays, their searches and their online interactions,…