I'll Explain it To You P1G. In a SQL Relational Database: Data that is Infrequently Accessed is Normalised (Relational: SQL) AND Data that is Frequently Accessed is De-Normalised (Hierarchical: MongoDB or Mainframe Database). This Reduces the Size of Database Files. Processing Smaller Database Files is Faster.
Good stuff here
I'll Explain it To You P1G. In a SQL Relational Database: Data that is Infrequently Accessed is Normalised (Relational: SQL) AND Data that is Frequently Accessed is De-Normalised (Hierarchical: MongoDB or Mainframe Database). This Reduces the Size of Database Files. Processing Smaller Database Files is Faster.