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The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals and to follow students into their careers. If there are majors where graduation rates are low it can help administrators decide how to better serve students, make changes to the curriculum or change standards of acceptance into the program.
Diagram Tool:ER AssistantDatabase:Oracle 10g, using Nova.Hardware and Software:UMUC server system (Nova). Operating system is UNIX.
DDL and DML:
SQL (Structured Query Language) will be used for the DDL and DML. For my DDL scripts, I will use SQL to translate the information captured in my ER diagram (created in ER Assistant) into database table creation scripts. For my DML scripts, I will use SQL to insert rows of data into my database tables.
Question: (a) Discuss the difference between a composite key and a composite attribute. How would each be indicated in an E-R diagram? Support your answer with appropriate exam
Q.1 Briefly discuss the different layers of ANSI SPARC architecture. Ans: The three layers of ANSI SPARC architecture are like this: 1. Internal view is at the lowest leve
Define weak and strong entity sets? Weak entity set: entity set that do not have key attribute of their own are known as weak entity sets. Strong entity set: Entity set that
Define value set? Value set: It is a set of values. You do not always need a user to enter junk free text within all the fields. Therefore, Oracle Apps uses value set to valida
The primary key is selected from the
why older data models are being replaced by new data models.
MOSS VALE is a town with 15000 inhabitants. The fire department wishes to develop a system that automates the despatch of fire engines to attend fires. The ERD below describes the
In the first unit of this block, you have been given with the details of the Database Management System, its structure, advantages etc. This unit is an attempt to give you informat
What are segments in oracle? Segments - Each table has single field of disk space, known as segment, set aside for it in the tablespace. Segments consist of contiguous sections
Question 1 Explain ER model Question 2 What are the characteristics of a computer provided information? Question 3 What are facts and guidelines to be considered when se
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