Research data base management system definition:-
A R.DBMS consist of different data model which use in oreacle through the data base technology and data base software. It is an activity reuse to close. Attention of the data base demage who may work under the data base controller. There are two approach use in design a relation data base.
A). D- composition Approach
B). Commentic Approach
A). D- composition Approach:-
This approach start with one relation and associate set of value in the relation of function dependent multi level distribution dependency and joint dependency.
B). Commentic Approach:
This approach start with a set of function dependency on a set of attributes through inter relationship between tables and orignal relationship.
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