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Objectives
After reading this part, you should be able to:
Preliminary entities and attributes of human resourse management database management system
FDs in Entities : Student entity : Enrolment number → Student name, Address Course Entity :
Attributes that are directly kept in the data base. For example, 'Birth date' attribute of a person. Derived Attributes that are not stored directly but can be derived
Question: Consider the following database relations for a textbook ordering system used by a college bookshop: Book (b-copy#, bname, ISBN#, author, price, subject) Order (s#
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
What are called jukebox systems? Jukebox systems have a few drives and numerous disks that can be loaded into single of the drives automatically.
What is Identity? Identity (or AutoNumber) is a column that automatically produces numeric values. A start and increment value can be set, but most DBA leave these at 1. A GUID
Describe the candidate key functions ? Candidate Key and Alternate Key: In some instances, an entity will have more than one attribute which can serve as a primary key. Any key
WHAT IS DBMS
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