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What is an MDDB? What is the difference between MDDBs and
RDBMSs?

Question Posted / pradeeshkumar

Answer Posted / pradeeshkumar

RDBMS-Relational database management systems.
It involves managing the information that are stored in
relational tables(tables that are related with each other
using a primary and foreign key relationship).
It's not multidimensional. Its just information stored in
tables.
MDDB- Multidimensional Database comes into play at the time
of OnLine Analytical Processing. It stores information
along multidimensions(mostly in multi-d cubes) that
facilitates slicing and dicing.

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