
Given the data in the table the best surrogate primary key for this table would be:
none of the listed attributes.
student, email, and instructor
student, email, and class
student, email, and day
instructor, phone
Answer:
student, email, and day
Explanation:
The combination of student, email, and day columns can be used to uniquely identify the rows in the table.
Given the data in the table the best surrogate primary key for this table would be:...
IT IS NOT STUDENT, EMAIL, and CLASS
or
STUDENT, EMAIL, and DAY
Student Roster Student Email Class Days Time Instructor Phone Fred Flintstone ff@brc.edu Java PromeM 7.00PM P.R.O'Grammer 206-880-3232 Wilma Flintstone wf@brc.edu Java Promo M 7:00PM P.R. OʻGrammer 206-880-3232 Wlima Flintstone wf@brc.edu Database T 7.00PM S.O.Elle 206-448-9876 Barney Rubble br@brc.edu Database T 7:00PM S.Q.Elle 206-448-9876 BamBam Rubble br@bre.edu Hacking M 5:00PM S.N.Odin 253-333-8998 BamBam Rubble bambam@aol.com Database w 7:00PM S.O.Elle 206-448-9876 Wilma Flintstone wfbrc.edu Database W 7.00PM S.Q.Elle 206-448-9876 Betty...