Which subset of Structured Query Language (SQL) is used to create and name database entities?
Which statement best describes a candidate key?
Which of the following is a characteristic of the three-tier database architecture?
Which term describes an attribute or combination of attributes that uniquely identifies a row in a relation?
Consider the following relational algebraic expression as well as the Dept1_Parta and Dept2_Parts relations shown in the exhibit: Which of the following relations would result form the given relational algebraic expression?
Consider the relation shown in the exhibit. Which of the following SQL statements would return a relation that excludes all customers with a Satisfaction_Rate of less than or equal to 80 unless the Sales_Office is located in Atlanta?
