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Whst is logical schema ?
Logical schema is the entire database.
Question 1 Define OLTP? Explain the Differences between OLTP and Data Warehouse Question 2 What is Architecture? Explain various components involved in it Question
A Functional dependency is described by X Y between two groups of attributes Y and X that are subsets of R specifies a constraint on the possible tuple that can make a relation
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Types of Data fragmentation
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explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
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