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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.
Explain the ISA relationship Answer: ISA relationship - ISA notation is employed in generalization/ specialization to depict relationship among lower and higer level entity s
Timestamps For Read operations: If TS (T) If TS (T) >= W-timestamp (Q), then the transaction T is trying to read a value of data item Q which has been written and committed
What are the disadvantages of file processing system? The drawbacks of file processing systems are a) Data redundancy and inconsistency b) Complexity in accessing data
discuss the array implementation of a stack.
explain multi key file organisation
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
List any eight applications of DBMS. a) Universities b) Airlines c) Banking d) Credit card transactions e) Tele communication f) Sales g)Finance h) Manufac
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What is the disadvantage of a call by reference? During a call by reference damage or loss of data is not restricted to the subroutine, but will instantly lead to alters to th
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