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In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
Define average latency time. The average latency time of the disk is one-half the time for a full rotation of the disk.
Explain the concept of a data model ? Data Model - Model is an abstraction procedure which hides irrelevant details although highlighting details relevant to the application
Compare wait-die deadlock prevention scheme with wait-wound scheme Ans: Wait-Die Scheme a) Based upon a nonpreemptive technique. b) If Pi requests a resource present
Define physical and logical data independence. How does this architecture help in achieving these? Data independence entails that change in one view must not need a change in t
Describe substring comparison in SQL. For the relation Person (name, address), write a SQL query that retrieves the names of people whose name starts along with ‘A' and address co
object oriented database
need requirement analysis for database management of stock market
Which database object does not physically exist? A view database object does not physically exist.
Process of normalization is the integral part of designing a database. Justify this statement with suitable database design
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