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Explain trivial dependency?
Functional dependency of the form α ->β. is trivial if α C β. Trivial functional dependencies are satisfied by all the relations.
Define query language? A query is a statement requesting the retrieval of information. The portion of DML that includes information retrieval is known as a query language.
Explain the Functional Mode with help of an example. Functional Model The functional model shows a computation and functional derivation of data values in it without ind
A student entity type has the following attributes,name..
What is Thread splitting A thread of control is a path by which a set of state diagrams on that a single object is active at a time. Objects are shared between threads
What are the two types of errors? The two types of errors are: a) Logical error b) System error
What is meant by heuristic optimisation?Discuss the major heuristics that are applied during query optimisation.
What are the drawbacks of File Oriented System in details?
Determine the concept of Process Process: A process transforms the data values. It is represented as ellipse containing a description of transformation. Each procedure has a
Determine the term- Active values An active value is that has dependent values. Every dependent value registers itself with active value that contains a set of dependent values
What is deadlock? Neither of the transaction can ever proceed with its normal implementation. This situation is known as deadlock.
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