Computer Sciences > GATE 2024 SET-1 > Relational Algebra
Consider the following two relations, R(A,B) and S(A,C);
The total number of tuples obtained by evaluating the following expression
σB<C(R ⨝R.A=S.AS)
is __________.
σB<C(R ⨝R.A=S.AS)
is __________.
Correct : 3
Similar Questions
Consider a database that has the relation schemas EMP (EmpId, EmpName, DepId), and DEPT(DeptName, DeptId). Note that the DepId can be permitted to be NULL in th...
The relation schema, Person(pid, city), describes the city of residence for every person uniquely identified by pid. The following relational algebra operators...
A relation r(A, B) in a relational database has 1200 tuples. The attribute A has integer values ranging from 6 to 20, and the attribute B has integer values ran...
Total Unique Visitors
Loading......