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Give one example each to illustrate the following terms: i . Database, Database System, Database Management System ii . Relations, Attributes, Tuples, Constraints ( Entity

Give one example each to illustrate the following terms:
i. Database, Database System, Database Management System
ii. Relations, Attributes, Tuples, Constraints (Entity, Referential Integrity, Semantic
Integrity)
A database system uses an Apache web server, a WebLogic Application server, and an Oracle
database. Draw a 3-tier architecture for this system. Use the Internet to identify the latest versions
of the above-mentioned software to use in your architecture diagram.
As the leader of the data design team, you have been asked to bring a work plan that identifies the
phases of data design and includes the following information for each phase:
description of the data design phase
the inputs of the phase
the outputs of the phase
Based on the above scenario, fill up the following table:
Suppose that each of the following Update operations is applied directly to the database
state shown in Figure 5.6. Discuss all integrity constraints violated by each operation, if any, and
the different ways of enforcing these constraints.
a. Insert 'Robert', 'F', 'Scott', '943775543','1972-06-21','2365 Newcastle Rd, Bellaire, TX', M,58000,
'888665555',1> into EMPLOYEE.
b. Insert 'ProductA', 4, 'Bellaire', 2> into PROJECT.
c. Insert 'Production', 4,'943775543','2007-10-01'> into DEPARTMENT.
d. Delete the WORKS_ON tuples with Essn ='333445555'.
e. Delete the EMPLOYEE tuple with Ssn='987654321'.
f. Modify the Mgrssn and Mgr start date of the DEPARTMENT tuple with Dnumber =5 to '123456789'
and '2007-10-01', respectively.
g. Modify the Super ssn attribute of the EMPLOYEE tuple with Ssnsn='999887777' to '943775543'.
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