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What is relationship? Give examples A relationship is an association between several entities. Example: A depositor relationship associates a customer with every account tha
what are information system hirarchy?
What is the State Machine Engine The straightest approach to implement control is to have any way of explicitly representing and executing state machines. With the help of thi
Performance of Various Concurrency Control Mechanisms
What is a virtual table that draws its data from the result of an SQL SELECT statement? View is a virtual table that draws its data from the result of an SQL SELECT statement.
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
What is a heterogeneous distributed database? In a heterogeneous distributed database, dissimilar sites may use different schemas, and dissimilar dbms s/w. The sites may not be
What is deadlock? Neither of the transaction can ever proceed with its normal implementation. This situation is known as deadlock.
Consider the subsequent relation Professor (Pfcode, dept, head, time) It is assumed that (i) A professor can work in much more than one
Express the following queries in SQL: (a) Write the SQL code that will create ALL the four tables given in the appendix. Your answer should not contain the primary key and
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