Document Databases

Document Databases

1. What is a document database?

   • One collection
     • Possible mismatch data schemas
   • Nested documents
     • Easy access
     • Better performance
   • Ignores empty attributes
   • Database examples
     • MongoDB
     • CouchDB
     • OrientDB
     • RavenDB

2. Suitable Use Cases

   • Event logging
     • Storage
       • Distinct types of events
   • Content Management Systems
     • JSON documents
   • Blogging Platforms
     • Useful
       • Registration
       • Profiles
       • Comments
   • Real-Time Analytics
     • Dynamic document update
   • E-commerce
     • Unrestricted schemas

3. When not to use

   • Complex transactions
     • Different operations
   • Queries against varying aggregate structure
     • Requirement
       • Data normalization