Which term describes an attribute or combination of attributes that uniquely identifies a row in
a relation?
Using the Customer and Sales_Rep relations shown in the exhibit, you must datermine a relational
algebraic expression that will result in the following relation:
Which of the following relational algebraic expressions would result in this relation?
Which term describes an attribute or combination of attributes that uniquely identifies a row in
a relation?
Which term best describes one or more database operations that are executed as a single unit?
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