Entity

Entity is the basic block for building the data collected about person, place, event, or thing.

Entities represent attributes that can have multiple instances.

For example: STUDENT, EMPLOYEE.

Attribute:

Attribute is a property or characteristics of a DBMS (Database Management Systems).

It refers to the components of the database. Database tables or database fields are referred to as attributes.

The instance in a particular row of a database is described by attributes...

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Chapter 1 Solutions

Oracle 12c: SQL

Ch. 1 - Prob. 1RQ Ch. 1 - Prob. 2RQ Ch. 1 - Prob. 3RQ Ch. 1 - Prob. 4RQ Ch. 1 - Discuss the problems that can be caused by data...Ch. 1 - Explain the role of a primary key.Ch. 1 - Prob. 7RQ Ch. 1 - Prob. 8RQ Ch. 1 - What type of relationship can’t be stored in a...Ch. 1 - Identify at least three reasons an organization...

Ch. 1 - Prob. 1MC Ch. 1 - Prob. 2MC Ch. 1 - Prob. 3MC Ch. 1 - Prob. 4MC Ch. 1 - Prob. 5MC Ch. 1 - Prob. 6MC Ch. 1 - Prob. 7MC Ch. 1 - Which of the following has no partial or...Ch. 1 - Prob. 9MC Ch. 1 - Which of the following has no partial dependencies...Ch. 1 - Which of the following has no repeating groups but...Ch. 1 - Prob. 12MC Ch. 1 - Prob. 13MC Ch. 1 - A unique identifier for a data row that consists...Ch. 1 - Which of the following symbols represents an...Ch. 1 - Prob. 16MC Ch. 1 - Which of the following represents a field in a...Ch. 1 - Which of the following defines a relationship in...Ch. 1 - When part of the data in a table depends on a...Ch. 1 - Which of the following is used to join data...Ch. 1 - Which tables and fields would you access to...Ch. 1 - Prob. 2HOA Ch. 1 - Prob. 3HOA Ch. 1 - Prob. 4HOA Ch. 1 - Access path A database table is composed of...Ch. 1 - Prob. 6HOA Ch. 1 - Prob. 7HOA Ch. 1 - Prob. 8HOA Ch. 1 - Prob. 9HOA Ch. 1 - Prob. 10HOA

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