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Data modeling indicates the RDBMS the following:
- what elements of the data you will store for your application
- how large each element can be
- what kind of information each element can contain(data types)
- what elements may be left blank
- which elements are constrained to a fixed range
- whether and how various tables are to be linked
Also look ....
http:/enzperiodzwikipediazperiodzorg/wiki/Data_model
http://www.agiledata.org/essays/dataModeling101.html#WhatIsDataModeling
...................... Mangesh Chitre .... Dec 3, 2010.......
Wiki User
∙ 14y ago
Wiki User
∙ 14y agodata is nothing but collection of raw facts.
what ever you know that can be represented as data.
but data may not explain the complete characterstics of an object.
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