101 Ann Smith smith@acm.org 102 Michael Jones 103 Richard Turner richard.turner@gmx.de 104 Maria Brown brown@hotmail.com H 1 Relational Algebra 10 H 2 SQL 10 M 1 SQL 14 101 H 1 10 101 H 2 8 101 M 1 12 102 H 1 9 102 H 2 9 102 M 1 10 103 H 1 5 103 M 1 7