RELATIONAL ALGEBRA

Question

What is the output of below question please draw table according to question.

Answer 1

 $\prod _{name} (\sigma _{grade=A}(Student * Grade))$

Name

A

B

C

  $(Student * Grade))$

Student * Grade

Name	Roll No	G.Roll no	Grade
A	1	2	A
A	1	3	B
A	1	4	A
B	2	2	A
B	2	3	B
B	2	4	A
C	3	2	A
C	3	3	B
C	3	4	A

 $(\sigma _{grade=A}(Student * Grade))$

Name	Student.Roll No	Grade.Roll no	Grade
A	1	2	A
A	1	4	A
B	2	2	A
B	2	4	A
C	3	2	A
C	3	4	A