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Define the following additional queries in SQL. to watch Query results if applied to a database. (a) per department employee average salary over $30,000, Retrieve the name of the department and the number of its employees. (b) Suppose we want the number of male employees in each department, can we define this query in SQL? Why and why not?

Define the following additional queries in SQL. to watch Query results if applied to a database. (a) per department employee average salary over $30,000, Retrieve the name of the department and the number of its employees. (b) Suppose we want the number of male employees in each department, can we define this query in SQL? Why and why not?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Define the following additional queries in SQL. to watch
Query results if applied to a database.


(a) per department employee average salary over $30,000,
Retrieve the name of the department and the number of its employees.
(b) Suppose we want the number of male employees in each department, can we define this query in SQL? Why and why not?

ΕMPLOYEΕ Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssn Dno 123456789 1965-01-09 731 Fondren, Houston, TX M 30000 333445555 333445555 1955-12-08 638 Voss, Houston, TX 999887777 1968-01-19 3321 Castle, Spring, TX John B Smith Franklin Wong M 40000 888665555 5 F 25000 987654321 43000 888665555 Alicia J Zelaya Wallace 987654321 1941-06-20 291 Berry, Bellaire, TX 4 Jennifer F 4 Narayan 666884444 1962-09-15 975 Fire Oak, Humble, TXM English 453453453 1972-07-31 5631 Rice, Houston, TX 987987987 | 1969-03-29 980 Dallas, Houston, TX 38000 333445555 25000 333445555 25000 987654321 Ramesh Joyce Ahmad V Jabbar M 4 James E Borg 888665555 1937-11-10 450 Stone, Houston, TX M 55000 NULL DEPARTMENT DEPT_LOCATIONS Dname Dnumber Mgr_ssn Mgr_start_date Dnumber Dlocation Research 5 333445555 1988-05-22 1 Houston Administration 4 987654321 1995-01-01 4 Stafford Headquarters 1 888665555 1981-06-19 Bellaire Sugarland 5 Houston WORKS_ON PROJECT Essn Pno Hours Pname Pnumber Plocation Dnum 123456789 32.5 ProductX 1 Bellaire 123456789 7.5 ProductY Sugarland 666884444 3 40.0 ProductZ 3 Houston 453453453 20.0 Computerization 10 Stafford 4 453453453 2 20.0 Reorganization 20 Houston 333445555 10.0 Newbenefits 30 Stafford 333445555 3 10.0 333445555 10 10.0 DEPENDENT 333445555 20 10.0 Essn Dependent_name Sex Bdate Relationship 999887777 30 30.0 333445555 Alice F 1986-04-05 Daughter 999887777 10 10.0 333445555 Theodore M 1983-10-25 Son 987987987 10 35.0 333445555 Joy F 1958-05-03 Spouse 987987987 30 5.0 987654321 Abner M 1942-02-28| Spouse 987654321 30 20.0 123456789 Michael M 1988-01-04 Son 987654321 20 15.0 123456789 Alice F 1988-12-30 Daughter 888665555 20 NULL 123456789 Elizabeth 1967-05-05 Spouse 5 4. 5 KA
Transcribed Image Text:ΕMPLOYEΕ Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssn Dno 123456789 1965-01-09 731 Fondren, Houston, TX M 30000 333445555 333445555 1955-12-08 638 Voss, Houston, TX 999887777 1968-01-19 3321 Castle, Spring, TX John B Smith Franklin Wong M 40000 888665555 5 F 25000 987654321 43000 888665555 Alicia J Zelaya Wallace 987654321 1941-06-20 291 Berry, Bellaire, TX 4 Jennifer F 4 Narayan 666884444 1962-09-15 975 Fire Oak, Humble, TXM English 453453453 1972-07-31 5631 Rice, Houston, TX 987987987 | 1969-03-29 980 Dallas, Houston, TX 38000 333445555 25000 333445555 25000 987654321 Ramesh Joyce Ahmad V Jabbar M 4 James E Borg 888665555 1937-11-10 450 Stone, Houston, TX M 55000 NULL DEPARTMENT DEPT_LOCATIONS Dname Dnumber Mgr_ssn Mgr_start_date Dnumber Dlocation Research 5 333445555 1988-05-22 1 Houston Administration 4 987654321 1995-01-01 4 Stafford Headquarters 1 888665555 1981-06-19 Bellaire Sugarland 5 Houston WORKS_ON PROJECT Essn Pno Hours Pname Pnumber Plocation Dnum 123456789 32.5 ProductX 1 Bellaire 123456789 7.5 ProductY Sugarland 666884444 3 40.0 ProductZ 3 Houston 453453453 20.0 Computerization 10 Stafford 4 453453453 2 20.0 Reorganization 20 Houston 333445555 10.0 Newbenefits 30 Stafford 333445555 3 10.0 333445555 10 10.0 DEPENDENT 333445555 20 10.0 Essn Dependent_name Sex Bdate Relationship 999887777 30 30.0 333445555 Alice F 1986-04-05 Daughter 999887777 10 10.0 333445555 Theodore M 1983-10-25 Son 987987987 10 35.0 333445555 Joy F 1958-05-03 Spouse 987987987 30 5.0 987654321 Abner M 1942-02-28| Spouse 987654321 30 20.0 123456789 Michael M 1988-01-04 Son 987654321 20 15.0 123456789 Alice F 1988-12-30 Daughter 888665555 20 NULL 123456789 Elizabeth 1967-05-05 Spouse 5 4. 5 KA
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