Use the Relational algebra to retrieve the First names (Fname) and Salary of all employees in department 4 who work more than 10 hours per week on the ProductX project. d Give the table result from cach step. ΕMPLOYEΕ WORKS ON Fname Ssn Lname Salary Essn Pno Hours 123456789 John Franklin Alicia Smith Wong Zelaya Wallace 30000 123456789 32.5 333445555 40000 123456789 7.5 999887777 25000 666884444 40 jennifer 987654321 43000 453453453 1. 20 666884444 Narayan English Jabbar Ramesh 38000 453453453 20 Joyce Ahmad 453453453 25000 333445555 10 987987987 25000 333445555 10 James 888665555 Borg 55000 333445555 10 10 333445555 20 10 PROJECT 999887777 30 30 999887777 10 987987987 987987987 30 10 Pnumber Plocation Dnum Bellaire Pname ProductX 10 35 ProductY Sugarland OE 15 987654321 20 Productz Houston 987654321 20 Computerization 10 Stafford Reorganization 20 Houston 888665555 20 NULL Newbenefits 30 Stafford DEPARTMENT Dnumber Mgr ssn 333445555 987654321 888665555 Dname Research Administration Headquarters

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