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(a) Provide the description of the following ODMG schema in the Object Definition Language (ODL).
(b) Based on the above object database, write the following queries in the Object Query language (OQL):
Write short note on Events Events consist of inputs, interrupts, decisions and actions performed by any external device or users. Every event always has a sender and receiver.
Define union compatibility? Explain why INTERSECTION of two relations cannot be performed if they are not union compatible? Two relations R(A1, A2,-------, An) and S(B1, B2,--
Why were functional methods fashionable in early days? These are inspired directly by computer architecture and thus popular among computer scientist in early days. The divisio
What is database utility? Database utility is the interface among the ABAP/4 Dictionary and the underlying the SAP system.
What are the two approaches to store relations in distributed database? a) Replication b) 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
i would like to ask if you will do assignment of database number of words 1500 and how much
explain the mapping constraints
In this practical assignment, we will run through a complete database application development cycle, starting with the schema design, from an initial data import to database applic
What is deadlock? Neither of the transaction can ever proceed with its normal implementation. This situation is known as deadlock.
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