Chapter 6 Tutorial3 Exercise 1 - a Tuple relational calculus: {e.FNAME, e.LNAME | EMPLOYEE(e) AND e.DNO=5 AND (  p) (  w) (PROJECT(p) AND WORKS_ON(w) AND p.PNAME='Product x' AND w.HOURS>10 AND e.SSN=w.ESSN AND p.PNUMBER= w.PNO)} Domain relational calculus: {qs | (  z) (  a) (  b) (  e) (  f) (  g) (EMPLOYEE(qrstuvwxyz) AND PROJECT(abcd) AND WORKS_ON(efg) AND z=5 AND a='Product x' AND g>10 AND t=e AND b=f)}
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