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Database Management – Ch. 2 Review Questions1.What is a relation?2.What is a relational database?3.What is an unnormalized relation? Is it a relation according to the definition of the word relation?4.How is attribute used in the relational model? What is a more common name for attribute?5.Describe the shorthand representation of the structure of a relational database. Illustrate this 6.What does it mean to qualify a field name? How would you qualify the Street field in the Client table?When you combine a column name with a table name.7.What is a primary key? What is the primary key for each table in the Colonial Adventure Tours database shown in Figures 1-15 through 1-19 in Chapter 1?