Consider the relations Courses1, Courses2,_Enrollmentand Students.Coursescid enameAl CalculusA2 AlgebraA5 EnglishLocationLIL2L3Student(sid, sname, age, level)Courses2cidASB1B2nameEnglishHistoryb) Courses 1-Courses2L3L4Computing L5(1) Give the results of the following relational_algebra expressions:a) Teid ( name='History' OR 'Computing (Courses2))c) Courses Courses2Classroomd) Courses1 Enrollmente) Enrollment / Tid (Courses1)Enrollmentsid cid101 Al102 A5103 Bl102 Al102A2CARENA(2) Write the following query in Relational Algebra.a) Find the sids of students who have enrolled incourse Calculus.b) Find the names of students who have enrolled incourse Calculus._c) Find the names of students who have enrolled atleast one course._d) Find the names of students who have enrolled in_Calculus or Algebra.e) Find the sids of students who have enrolled in allcourses (both Courses1 and Courses2).

As per Bartleby rules, we can answer the first 3 subparts.But as these are small questions, am…

Consider the relations Courses1, Courses2, Enrollment and Students. Courses cid ename Al Calculus Location cid LI A2 Algebra L2 A5 English 13 Courses2 Student(sid, sname, age, level) name A5 English BI History B2 Classroom L3 L4 Computing L5 b) Courses 1-Courses2 (1) Give the results of the following relational algebra expressions: a) Acid ( name='History' OR 'Computing (Courses2)) c) Courses Courses2 Enrollment sid cid 101 A1 102 A5 103 Bl 102 Al 102 A2 d) Courses1 Enrollment

Consider the relations Courses1, Courses2, Enrollment and Students. Courses cid ename Al Calculus Location cid LI A2 Algebra L2 A5 English 13 Courses2 Student(sid, sname, age, level) name A5 English BI History B2 Classroom L3 L4 Computing L5 b) Courses 1-Courses2 (1) Give the results of the following relational algebra expressions: a) Acid ( name='History' OR 'Computing (Courses2)) c) Courses Courses2 Enrollment sid cid 101 A1 102 A5 103 Bl 102 Al 102 A2 d) Courses1 Enrollment

Principles of Information Systems (MindTap Course List)

12th Edition

ISBN:9781285867168

Author:Ralph Stair, George Reynolds

Publisher:Ralph Stair, George Reynolds

Chapter5: Database Systems And Applications

Section: Chapter Questions

Problem 4PSE: Using a graphics program, develop an entity-relationship diagram for a database application for an...

See similar textbooks

Similar questions

Consider the relations Courses1, Courses2, _Enrollment and Students. Coursesl cid ename Al Calculus Location L1 A2 Algebra L2 A5 English L3 Student(sid, sname, age, level) Courses2 cid A5 B1 B2 b) Courses 1-Courses2 name English L3 History L4 Computing L5 (1) Give the results of the following relational algebra expressions: a) Teid ( name="History' OR 'Computing (Courses2)) c) Courses Courses2 Classroom d) Courses1 Enrollment e) Enrollment / Teid (Courses1) Enrollment sid cid 101 Al 102 A5 103 Bl 102 Al 102 A2 (2) Write the following query in Relational Algebra. a) Find the sids of students who have enrolled in course Calculus. b) Find the names of students who have enrolled in course Calculus. _c) Find the names of students who have enrolled at least one course. d) Find the names of students who have enrolled in _Calculus or Algebra. e) Find the sids of students who have enrolled in all courses (both Courses1 and Courses2).
Consider the relations Courses1, Courses2, _Enrollment and Students. Courses cid ename Al Calculus A2 Algebra A5 English Location LI L2 L3 Student(sid, sname, age, level) Courses2 cid AS B1 B2 name English History b) Courses 1-Courses2 L3 L4 Computing L5 c) Courses Courses2 Classroom (1) Give the results of the following relational _algebra expressions: a) Teid ( name='History' OR 'Computing (Courses2)) d) Courses1 Enrollment e) Enrollment / Teid (Courses1) Enrollment sid cid 101 Al 102 A5 103 Bl 102 Al 102 A2 CARENA (2) Write the following query in Relational Algebra. a) Find the sids of students who have enrolled in course Calculus. b) Find the names of students who have enrolled in course Calculus. _c) Find the names of students who have enrolled at least one course. _d) Find the names of students who have enrolled in _Calculus or Algebra. e) Find the sids of students who have enrolled in all courses (both Courses1 and Courses2).
Convert the following Relation into INF, 2NF, and 3NF and show the functional dependencies. StudentID StudentName Major CourselD CourseTitle InstructorName InstructorLocation Grade D-Building A-Building C-Building C-Building A-Building D-Building A-Building 111 Kevin CS CS201 Bob Computer Marketing Accounting Accounting Jeff 111 Kevin CS МАЗ3 Jeff 111 Kevin CS АCC234 Sarah 222 Alex BA АСC234 Sarah B. 333 МАЗ33 Marketing Computer Marketing Noor MA 444 CS201 Bob Luay Adam BA A 555 AC МАЗ33 Jeff
For each of the following pairs of expressions, give instances of relations thatshow the expressions are not equivalent. ΠA(r − s) and ΠA(r) − ΠA(s).
Consider the relations Courses1, Courses2, Enrollment and Students. Courses1 Courses2 Enrollment sid cid cid ename Al Calculus A2 Algebra AS English Location cid name Classroom English History B2 LI L3 101 Al L2 L3 BI L4 102 A5 Computing L5 103 BI 102 Al 102 A2 Student(sid, sname, age, level) (1) Give the results of the following relational _algebra expressions: a) Ttcid (o name ="History' OR 'Computing (Courses2)) b) Courses 1-Courses2 c) CourseslnCourses2 d) Courses1 AEnrollment e) Enrollment / Tcid (Courses l) (2) Write the following query in Relational Algebra. a) Find the sids of students who have enrolled in course Calculus. _b) Find the names of students who have enrolled in course Calculus. _c) Find the names of students who have enrolled at least one course. _d) Find the names of students who have enrolled in Calculus or Algebra. Le) Find the sids of students who have enrolled in all courses (both Courses1 and Courses2).
Consider the relations Courses1, Courses2, Enrollment and Students. Courses1 Courses2 Enrollment cid cname Location cid name Classroom sid cid Al Calculus A2 Algebra A5 English English History Computing LI A5 L3 101 Al L2 B1 L4 102 |A5 L3 B2 L5 103 B1 102 A1 102 A2 Student(sid, _sname, age, level) (1) Give the results of the following relational _algebra expressions: a) Tcid (o name ="History' OR 'Computing"(Courses2)) b) Courses1-Courses2 c) Courses1Courses2 d) Courses1 Enrollment e) Enrollment / Tcid (Courses1) _(2) Write the following query in Relational Algebra. a) Find the sids of students who have enrolled in _course Calculus. _b) Find the names of students who have enrolled in _course Calculus. c) Find the names of students who have enrolled at least one course. _d) Find the names of students who have enrolled in Calculus or Algebra. e) Find the sids of students who have enrolled in all courses (both Courses1 and Courses2).
Consider the relations Courses1, Courses2, _Enrollment and Students. Courses cid ename Al Calculus A2 Algebra A5 English Location LI L2 L3 Student(sid, sname, age, level) Courses2 cid AS B1 B2 name English History b) Courses 1-Courses2 L3 L4 Computing L5 (1) Give the results of the following relational _algebra expressions: a) Teid (G name="History' OR 'Computing (Courses2)) c) Courses lCourses2 Classroom d) Courses1 Enrollment e) Enrollment / cid (Courses1) Enrollment sid cid 101 Al 102 A5 103 Bl 102 Al 102 A2 CARENA (2) Write the following query in Relational Algebra. a) Find the sids of students who have enrolled in course Calculus. b) Find the names of students who have enrolled in course Calculus. _c) Find the names of students who have enrolled at least one course. _d) Find the names of students who have enrolled in _Calculus or Algebra. e) Find the sids of students who have enrolled in all courses (both Courses1 and Courses2).
Let R₁ and R₂ be the relations on X={a,b,c}, R₁={ (b,a), (c,b), (a,c) } R₂={ (a,c), (b,c)} R₁-¹= R₂ ° R₁=
Let R(a,b,c), S(a,b,c), and T(a,b,c) be three relations.Write one or more Datalog rules that define the result of each of the followingexpressions of relational algebra: d) (R U S)- T f) πa,b (R)
Consider the relations Courses1, Courses2, _Enrollment and Students. Courses cid ename Al Calculus A2 Algebra A5 English Location LI L2 L3 Student(sid, sname, age, level) Courses2 cid AS B1 B2 name English History b) Courses 1-Courses2 L3 L4 Computing L5 (1) Give the results of the following relational algebra expressions: a) Teid ( name='History' OR 'Computing (Courses2)) c) Courses Courses2 Classroom d) Courses1 Enrollment e) Enrollment / Tid (Courses1) Enrollment sid cid 101 Al 102 A5 103 Bl 102 Al 102 A2 CARENA (2) Write the following query in Relational Algebra. a) Find the sids of students who have enrolled in course Calculus. b) Find the names of students who have enrolled in course Calculus. _c) Find the names of students who have enrolled at least one course. _d) Find the names of students who have enrolled in _Calculus or Algebra. e) Find the sids of students who have enrolled in all courses (both Courses1 and Courses2).
Consider the relations Courses1, Courses2, Enrollment and Students. Courses1 Courses2 Enrollment sid cid cid ename Al Calculus A2 Algebra A5 English Location cid name Classroom English History B2 LI A5 L3 101 Al L2 L3 BI L4 102 A5 Computing L5 103 BI 102 Al 102 A2 Student(sid, sname, age, level) (1) Give the results of the following relational _algebra expressions: a) Ttcid (o name ="History' OR 'Computing (Courses2)) b) Courses1-Courses2 c) CourseslnCourses2 d) Courses1 AEnrollment e) Enrollment / Ttcid (Coursesl) (2) Write the following query in Relational Algebra. a) Find the sids of students who have enrolled in course Calculus. _b) Find the names of students who have enrolled in course Calculus. _c) Find the names of students who have enrolled at least one course. _d) Find the names of students who have enrolled in Calculus or Algebra. Le) Find the sids of students who have enrolled in all courses (both Courses1 and Courses2).
Consider the relations Courses1, Courses2, _Enrollment and Students. Courses1 Location cid ename Al Calculus LI A2 Algebra L2 A5 English L3 Student(sid, sname, age, level) Courses2 cid A5 BI B2 name English History b) Courses 1-Courses2 L3 L4 Computing L5 c) Courses Courses2 Classroom d) Courses1 Enrollment (1) Give the results of the following relational algebra expressions: a) Teid ( name='History' OR 'Computing (Courses2)) e) Enrollment / Teid (Courses1) Enrollment cid Al A5 sid 101 102 103 102 102 B1 Al A2 (2) Write the following query in Relational Algebra. a) Find the sids of students who have enrolled in _course Calculus. b) Find the names of students who have enrolled in course Calculus. _c) Find the names of students who have enrolled at least one course. d) Find the names of students who have enrolled in _Calculus or Algebra. e) Find the sids of students who have enrolled in all courses (both Courses1 and Courses2).