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DATABASEMANAGEMENTSYSTEMSamp;ndash;SQLQUIZ.doc
DATABASE MANAGEMENT SYSTEMS – SQL QUIZ
Given below are a description of a database and the contents of three tables. Write the SQL statements to answer questions listed at the end.
DepartmentID DepartmentName 111 Production 112 Information Technology 113 Accounting
MangerID ManagerName DepartMentID StartDate 10 John Thomas 111 12/23/1987 11 Michael Dumont 112 5/14/1993 12 Paul Brenner 113 11/11/1983
ProjectID ProjectName StartDate Enddate Cost ManagerID 100 COUGAR 1-Oct-2000 10-Oct-2004 $459,800.00 10 101 LEOPARD 5-May-2003 12-Dec-2004 $540,000.00 12 102 ALLEYCAT 23-Sep-1999 23-Oct-2004 $850,000.00 10 103 HIPPOPOT 8-Jul-2004 23-Nov-2004 $789,000.00 11 104 MARIETTA 21-Jun-2003 9-Sep-2004 $271,890.00 11 105 ELECTROLYTIC 12-Sep-1998 12-Dec-2003 $289,000.00 12 106 MARCONI 21-Oct-2003 13-Dec-2003 $198,000.00 12 107 LYPOLYTEM 17-Mar-2003 14-Sep-2003 $498,000.00 10
How many projects are there in total?
SELECT COUNT(ProjectID)
FROM Projects;
List all projects, and their mangers (name and start date of managers)
SELECT p.ProjectID, p.ProjectName, m.ManagerName
FROM Projects p, Managers m
WHERE p.ManagerID = m.ManagerID;
List all projects and their departments.
SELECT p.ProjectID, p.ProjectName, d.DepartmentName
FROM Projects p, Managers m, Departments D
WHERE p.ManagerID = m.ManagerID
AND m.DepartmentID = d.DepartmentID;
List all department names that have more than one project.
SELECT d.DepartmentName, COUNT(p.ProjectID)
FROM Projects p, Managers m, Departments D
WHERE p.ManagerID = m.ManagerID
AND m.DepartmentID = d.DepartmentID
GROUP BY DepartmentName
HAVING COUNT(p.ProjectID) 1;
List all managers who have projects.
SELECT ManagerName
FROM Managers
WHERE ManagerID IN (SELECT ManagerID
FROM Projects);
List all projects that started in the year 2000.
SELECT ProjectName
FROM Projects
WHERE to_char(StartDate, ‘YYYY’) = ‘2000’;
List all projects in the production department.
SELECT p.ProjectID, p.ProjectName, d.DepartmentName
FROM Projects
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