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What are the advantages of by using an index and what are its disadvantages ? In difference, if the search key of a secondary index is not a candidate key, it is not sufficient
give some example real life situation where DBMS are most suitable
education.
vertical fragmentation
Discuss the problem of Spurious tuples and how we may prevent it. Ans: A spurious tuple is, mainly, a record in a database that gets created while two tables are joined bad
Define the term Domain. For each n every attribute there is a set of permitted values known as the domain of that attribute.
State the data flow diagram of functional model Any action initiated by transition in the state diagram can be extended into an entire data flow diagram in functional model. Th
What are the aggregate objects in the data dictionary? Views Match codes Lock objects.
sql is relationally complete-justify
Need 2 projects completed in 3NF format.
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