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Tuesday, April 28, 2015

What are the three main concepts of the relational Model identified by Dr.Codd?

By Silencer 10:35 PM Leave a Comment 
What are the three main concepts of the relational Model identified by Dr.Codd? 

1.Manipulation 
2.Structure 
3.Integrity 
4.None of the listed options

1&2
 
 4
 
 1&3 
1&2&3
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