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What is nested relational model?
The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
List the data structures implemented by the storage manager. The storage manager executes the following data structure a) Data files b) Data dictionary c) indices
Using your cache simulator and using smalltex.din as your memory trace determine the total miss rate, compulsory miss rate, capacity miss rate, and conflict miss rate for the follo
What are the disadvantages of relational data ? Disadvantages • Performance - If the number of tables among that relationships to be established are large and the tables t
What is deadlock? Neither of the transaction can ever proceed with its normal implementation. This situation is known as deadlock.
What are domain constraints? A domain is a set of values that might be assigned to an attribute .all values that appear in a column of a relation must be taken fro
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
give some example real life situation where DBMS are most suitable
sir, could anybody help me in getting complete information about the mentioned topic
The users who use easy-to-use menu are called ? The users who use easy to use menu are called as Naïve users.
Describe integrity and security? a) Domain constraint b) Referential integrity A value that appears in one relation for a given set of attributes also appear fo
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