Rob creates a Course_Details table that has four columns: Course _ID, Course_Name, Semester, and Credits. A course may have 0.5 credits if it is for one semester and 1.0 credit if it is for two semesters. Which field should Rob assign as a primary key in the table?

Lucas put a lot of thought into the design for his company's new white paper. he made sure to include repeating design elements such as color schemes and decorative images. his goal was to a. add symmetry b. create a unified publication c. provide consistency d. save money