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Let us now make the E-R diagram for the student database as per the explanation given in the previous section.
We can also states the overall logical structure of a database using ER model graphically with the help of an E-R diagram.
ER diagrams are composed of:
Figure: ER diagram of COLLEGE database
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Due date for May 8
why shadow copy technique is used?
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(a) Why did SAP introduce the extended star schema?
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