Future of Database (cont)
How to overcome (some) RDBMS limitations?
Extend the relational model ...
- add new data types and query ops for new applications
- deal with uncertainty/inaccuracy/approximation in data
Replace the relational model ...
- object-oriented DBMS ... OO programming with persistent objects
- XML DBMS ... all data stored as XML documents, new query model
- noSQL data stores (e.g. (key,value) pairs, json or rdf)
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