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Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
If one requires to access data using Logical Database , the use of events is unavoidable. Yes, if someone wants to access data using Logical database then the use of events
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
Selective replication: This is a combination of generating small fragments of relation and replicating them rather than a entire relation. The data should be fragmented on require
difference between MIS and DSS
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
Performance of Various Concurrency Control Mechanisms
About Attribute inheritance
Give detail description on Transactions. - Using transactions we can group all SQL commands into a single unit. - Transaction begins with some task and finishes only when a
Distributed query and transaction processing a. Construct a query around any one of the functional divisions you made in 4a such that if executed in the distributed design of 4
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