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ER diagram on cosmetics
what are the reasons having variable length records
create an er diagram for production management in film industry
What is indexed sequential file organization? What are the applications of this organization? Ans: An index file can be employed to effectively overcome the problem of storing
Determine the Persistent object Persistent object can be stored in one of the following: Files Cheap, permanent, simple storage Low level (Write, Read) Ap
Why a report generator is used ? Report generator is used for print files on paper.
It defines that no primary key value can be null. This is as the primary key is used to recognize individual tuple in the relation. So we will not be able to recognize the records
Increased overheads on update : On the drawbacks side, it will need the system to ensure that all replicas of a relation are consistent. This shows that all the replicas of the rel
What is the aim of object design The aim of object design is to identify object which the system contains and the interactions among them. The system implements specification
explain normalisation
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