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Question: i) Explain the terms data warehousing and data mining. ii) Discuss the importance of the following security principles that a digital firm should amongst others, n
We will explain here an example database application having COLLEGE database and use it in showing several E-R modelling concepts. College database remains track of faculty, Stu
Draw the database using the ER approach and then make the tables accordingly. Populate the tables so that every table have at least 10 tuples. Then using Java and SQL, execute the
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
recovey techniques based on deferred update and immediate update
aggregation
brief history,definition,current trends and future trends if any of data fragmentation
wh
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
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