Using the following relations:

product ( pno, pname, man)

pno product number

pname product name

man manufacturer identification number manufacturer ( manno, mname, tickerno )

manno manufacturer identification number

mname manufacturer name

tickerno stock market identification code

For each of the following, give the relational algebra, tuple relational calculus and domain relational calculus notion for each.

a. Find the pno for all products.

b. Find all tuples in product where pname = eraser

c. Find the pno and tickerno for all products.