Which of the following symbol is used for selection operation?
a) Rho
b) @
c) #
d) &
Which of the following symbol is used for projection operation?
a) rho
b) pi
c) #
d) &
How many types of binary operations?
a) one
b) two
c) three
d) four
Explanation: union, set difference, cartesian product
The operation that combines the tuple of two relations is called…….
a) union operation
b) set difference
c) cartesian product
d) none of these
Which operation can be performed on union compatible relations?
a) union operation
b) set difference
c) cartesian product
d) none of these
Which operation can concatenate the tuples of two relations?
a) union operation
b) set difference
c) cartesian product
d) none of these
