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Data Fragmentation
"Fragmentation includes decomposing the data in relation to non-overlapping component relations".
Why do we require fragmenting a relation?
construct an er diagram for a hospital with a set of patients and a set of medical doctors. associate with each patient a log of various test and examination conducted.convert er d
What function divides one numeric expression by another and returns the remainder? MOD function divides one numeric expression by another and returns the remainder.
example of embedded SQL query
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usecase diagram,activity diagraM,SEQUENCE DIAGRAM
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