The above tables TUTOR and STUDENT tables below show tutors who are assigned to students. The...
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The above tables TUTOR and STUDENT tables below show tutors who are assigned to students. The student's tutor is identified by the tutorID column of the student table. The primary keys are TutorID and StudentID respectively. a) Explain the term Entity integrity and referential integrity in these two tables b) Do these tables confirm in Referential integrity and Entity integrity? Tutor Table Tutor Id 21 34 468 56 78 Tutor Name Newman Martin Wright Adams Student Table Student Id 990199 990278 990445 null 990721 Student Name Young Fletcher Chung Cohen Kennedy Tutor Id 56 56 45 21 78 The above tables TUTOR and STUDENT tables below show tutors who are assigned to students. The student's tutor is identified by the tutorID column of the student table. The primary keys are TutorID and StudentID respectively. a) Explain the term Entity integrity and referential integrity in these two tables b) Do these tables confirm in Referential integrity and Entity integrity? Tutor Table Tutor Id 21 34 468 56 78 Tutor Name Newman Martin Wright Adams Student Table Student Id 990199 990278 990445 null 990721 Student Name Young Fletcher Chung Cohen Kennedy Tutor Id 56 56 45 21 78
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Entity Integrity Each row or entity in a table must be uniquely recognized by its primary key and no ... View the full answer
Related Book For
Modern Database Management
ISBN: 978-0133544619
12th edition
Authors: Jeff Hoffer, Ramesh Venkataraman, Heikki Topi
Posted Date:
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