Describe how Operational Databases and Data Warehouses are similar and different based on the characteristics listed below.  Operational Database and Data Warehouse a.     Data models b.     Use of SQL c.     Data Redundancy d.     Time horizon (scope) of data e.     Source(s) of data f.      Data updates (changes to existing data) g.     Data addition (inserting new data) h.     Queries (amount of data retrieved) i.       Other differences?