Consider the following relational algebraic expression as well as the Dept1_Parts and
Dept2_Parts relations shown in the exhibit,

Which of the following relations would result from the given relational algebraic expression?
Consider the following database information:
domain s_id: integer
domain grd: fixed length character string length 1
STUDENT_GRADE(
Student_Number: s_id NOT NULL
Grade: grd )
Primary Key Student_Number
During which phase of the database design process would this information be developed?
Consider the Recreation relation shown in the exhibit. You need to apply a SQL statement to the Recreation relation that will return the following data:

Which SQL statement applied to the Recreation relation will return this data?
Your enterprise must decide whether to use a database management system. Which of the
following lists four advantages of using a DBMS?
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