DBMS: Data Abstraction [HD]

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This video explains: 1.What is Data Abstraction 2.Physical Level of abstraction 3.View Level of abstraction 4.Logical Level of abstraction 5.Complexity of Data ----------------------------------------------- You have doubts? Visit our forum: http://drcaos.com/foro/ Website: http://drcaos.com/ Twitter: https://twitter.com/eldrcaos Tuenti:http://adf.ly/7xdvI Facebook: http://www.facebook.com/Eldrcaos Google+ : http://www.goo.gl/eU968