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Explain the meaning of data Model?Differentiate between the types of data model?Differentiate some of the advantages and disadvantages of file processing systems?Explain three of the
Explain the meaning of data Model?Differentiate between the types of data model?Differentiate some of the advantages and disadvantages of file processing systems?Explain three of the advantages of the database approach?Write a SQL statement to prepare a list with salesman name, customer name and their cities for the salesmen and customer who belongs to the same city.
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