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DataSet Relational Algebra Exercise 1
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| group: Company DB Elmasri & Navathe Figure 5.6 | |
| description[[ the data for this dataset was taken from the Elmasri & Navathe (Fundamentals of Database Systems Textbook) with some minor modifications | |
| The relation _Employee_ contains basic information about the employees at a company | |
| The relation _Dependent_ contains basic information about each employees dependents | |
| The relation _Department_ contains basic information about the dept and its manager | |
| The relation _Dept_Locations_ contains info on where each department has offices | |
| The relation _Project_ contains basic information on each project and which dept it is in | |
| The relation _Works_On_ contains information on how much each employee works on each project | |
| ]] | |
| Employee = { | |
| FNAME, MINIT, LNAME, SSN:number, BDATE, ADDRESS, SEX, SALARY:number, SUPER_SSN:number, DNO:number | |
| John, B, Smith, 123456789, 1965-01-09, 731-Fondren-Houston-TX, M, 30000.00, 333445555, 5 | |
| Franklin, T, Wong, 333445555, 1955-12-08, 638-Voss-Houston-TX, M, 40000.00, 888665555, 5 | |
| Joyce, A, English, 453453453, 1972-07-31, 5631-Rice-Houston-TX, F, 25000.00, 333445555, 5 | |
| Ramesh, K, Narayan, 666884444, 1962-09-15, 975-Fire-Oak-Humble-TX, M, 38000.00, 333445555, 5 | |
| James, E, Borg, 888665555, 1937-11-10, 450-Stone-Houston-TX, M, 55000.00, NULL, NULL | |
| Jennifer, S, Wallace, 987654321, 1941-06-20, 291-Berry-Bellaire-TX, F, 43000.00, 888665555, 4 | |
| Ahmad, V, Jabbar, 987987987, 1969-03-29, 980-Dallas-Houston-TX, M, 25000.00, 987654321, 4 | |
| Alicia, J, Zelaya, 999887777, 1968-01-19, 3321-Castle-Spring-TX, F, 25000.00, 987654321, 4 | |
| } | |
| Dependent = { | |
| ESSN:number, DEPENDENT_NAME, SEX, BDATE, RELATIONSHIP | |
| 123456789, Alice, F, 1905-05-01, Daughter | |
| 123456789, Elizabeth, F, 1905-05-12, Spouse | |
| 123456789, Michael, M, 1905-06-07, Son | |
| 333445555, Alice, F, 1905-06-01, Daughter | |
| 333445555, Joy, F, 1905-05-05, Spouse | |
| 333445555, Theodore, M, 1905-05-23, Son | |
| 987654321, Abner, M, 1905-03-28, Spouse | |
| } | |
| Department = { | |
| DNAME, DNUMBER:number, MGR_SSN:number, MGR_START_DATE | |
| Headquarters, 1, 888665555, 1905-05-11 | |
| Administration, 4, 987654321, 1905-06-17 | |
| Research, 5, 333445555, 1988-05-16 | |
| } | |
| Dept_locations = { | |
| DNUMBER:number, DLOCATION | |
| 1, Houston | |
| 4, Stafford | |
| 5, Bellaire | |
| 5, Houston | |
| 5, Sugarland | |
| } | |
| Project = { | |
| PNAME, PNUMBER:number, PLOCATION, DNUM:number | |
| ProductX, 1, Bellaire, 5 | |
| ProductY, 2, Sugarland, 5 | |
| ProductZ, 3, Houston, 5 | |
| Computerization, 10, Stafford, 4 | |
| Reorganization, 20, Houston, 1 | |
| Newbenefits, 30, Stafford, 4 | |
| } | |
| Works_on = { | |
| ESSN:number, PNO:number, HOURS:number | |
| 123456789, 1, 32.50 | |
| 123456789, 2, 7.50 | |
| 123456789, 10, 0.00 | |
| 123456789, 20, 0.00 | |
| 333445555, 2, 10.00 | |
| 333445555, 3, 10.00 | |
| 333445555, 10, 10.00 | |
| 333445555, 20, 10.00 | |
| } |
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DataSet Relational Algebra Exercise 1