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Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
What are the advantages of object ID? The main advantages of Object IDs are as below: i) IDs are not changing ii) IDs are completely independent of the changes in data v
Give some encryption techniques? A) DES B) AES C) Public key encryption
explain participation constraints with examples
what is cascading rollback
Three way to handle missing field val
Question 1 What do you mean by database management system? Question 2 Write a note on Object-Oriented Model Question 3 Explain Sequential File Organization Question
Have a look around the site, and at some of the sites they have featured. These are all examples of bad design, and also offer an explanation about why they fall into this category
What are the various symbols used to draw an E-R diagram (any 3)?
Describes the several relationship constraints through giving suitable example? Constraints on relationships: There are two kinds of constraints on relationships. 1) Mapping
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