Difference between an ERD and EER
Write down a short note on the difference between an ERD and EER.
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An EER comprises everything in an ERD and an EER permits for more complex relationships than an ERD. An EER permits for object-oriented data modeling and take in supertypes and subtypes inheritance and entities.
Illustrate the term data mart. What do you mean by it?
hatcher also created the accompanying Level 1 data flow diagram for this process. Unfortunately, this DFD has numerous syntax and semantic errors. Identify the errors. Redraw the DFD to more correctly represent the receive supplier shipments process.
What demerits of ODBC does OLE DB overcome?
Define the term merge stage?
Specify the several types of Strategies?
define types of transaction failures and also what is meant by catastrophic failure?
What are the differences between perfect competition and Monopoly?
Provide a brief introduction of the term ‘Data warehousing ’?
Does the minimum spanning tree of a graph provide the shortest distance in between any of two gives nodes?
Describe briefly Aggregate transformation?
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