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Please can anyone help convert the following two SQL statements to Relational Algebra
1)
SELECT D.Dname
FROM Employee E, Department D
WHERE E.Dno = D.Dno
AND E.Lname='Smith'
AND S.Fname='John'
2)
SELECT B.Town
FROM Staff S, Branch B
WHERE S.BranchId = B.BranchId
AND S.lName='Pincher'
AND S.fName='Penny'
… and I suppose you meant D.Fname = ‘John’ in WHERE clause