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What is OLAP?
OnLine Analytical Processing (OLAP) is a Business Intelligence (BI) reporting system. OLAP gives the user with the capability to sum, count, average and do other easy arithmetic operations on groups of data. An OLAP report has calculates and dimensions. Measures are the data values to be displayed. Dimensions are characteristics of the measures. OLAP reports are known as OLAP cubes, although such reports are not limited to three dimensions.
Hi I have got an assignment for making an er diagram for market management software can any budy help me?
Define Specialisation and generalization in brief? Specialisation / generalization: Generalization or Specialization represents the is a relationship set, an necessary element
The JOIN operation is applied on two relations. When we want to choose related tuples from two given relation join is used. The join operation need that both the joined relations m
About Attribute inheritance
Define union compatibility? Explain why INTERSECTION of two relations cannot be performed if they are not union compatible? Two relations R(A1, A2,-------, An) and S(B1, B2,--
Write a query that display ename annual salary and comm from emp table
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
State the Component Diagram A component diagram represents a set of component and relationships among them. In a dynamic model, component diagram is used to model physical com
What is meant by mean time to failure? The mean time to failure is the amount of time that the system could run continuously without failure.
Structure of Client Server Systems: In client/server architecture, clients show users who require services while servers give services. Both client and server are a combination of
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