title: Dimensional model or Relational model for data warehouse?
body: <p>I have a pretty trivial questions in data warehouse,</p>
  
  <p>I know we use Dimensional data model to construct data marts and use Relational data model in staging area.</p>
  
  <p>What data model technique we use to store data in central data warehouse? Can we use both? Which is most commonly used? We have RDBMS for relational database model, what is the database used for dimensional modelling?</p>