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Relational DB Structure
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Subject Approach DB Design
Design Subject
Application Approach Design
Schema Architecture
Three Schema Arch
DBLC Design Stages
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Requirements Analysis
Requirements Analysis
Define Business Objects
BO Characteristics
Business Rules Importance
Interview Data Users
Data Flow Diagram
Creating User Views
Calculated Fields
Requirements Documentation
Requirements Analysis Conclusion
Attributes and Entities
Entities Conceptual Model
Store Entity Values
Rules for Creating Identifiers
Entity Instances
Attribute Domains Types
Multivalued Attribute
Multi-Valued Attributes
Multivalued Attribute(resolve)
Entity Attribute Constraints
Module Summary
ER Diagrams
ERD Concept
Three Relationship Types
One to One Relationships
Identify one To One
One to many Relationships
Identify One to Many
Define many To Many
Identify Many To Many
Many to Many Challenges
Convert m:n to 1:n
Mandatory Optional Relationship
Optional Participation Relationships
ERD Conclusion
ERD Conventions
ER Diagram
Three Model Types
idef1x Crowsfoot Chen Models
Entity Attribute Relationship
ER Diagram Types
Crow's Foot Notation
DB Participation Types
Interview End- Users
Verbalize ER Diagram
ER diagram model Types
Relational Database Structure Terminology - Quiz
Each question is worth one point. Select the best answer or answers for each question.
1.
What does a table store specific data about?
Please select the best answer.
A.
A column
B.
A subject
C.
A field
D.
A record
2.
Which of the following are required to link two tables?
Please select all the correct answers.
A.
Matching records
B.
Matching fields
C.
Matching columns
D.
Matching subjects
3.
Which of the following statements correctly describes SQL?
Please select all the correct answers.
A.
SQL is a data distribution language (DDL).
B.
SQL is the common language of relational databases.
C.
Syntax is uniform across all SQL dialects.
D.
SQL is a data manipulation language (DML).
4.
Which of the following functions of an RDBMS are related to its SQL component?
Please select all the correct answers.
A.
Modifies a relational database
B.
Maintains a relational database
C.
Creates applications for a relational database
D.
Manipulates a relational database