Database Reference
In-Depth Information
13. Reviewing Data Integrity
When you have eliminated the impossible, whatever remains, however improb-
able, must be the truth.
—S
HERLOCK
H
OLMES
,
T
HE
S
IGN OF
F
OUR
Topics Covered in This Chapter
You are now at the final stage of the database design process. You've accomplished many
things since you started the process. Thus far you have
• Perceived the advantages of the relational database model and how it compares to
other database models
• Created a mission statement for a new database
• Defined mission objectives for the new database
• Performed a complete analysis of an old database
• Identified the organization's information requirements
• Defined all the appropriate table structures
• Assigned a primary key to each table
• Established field specifications for each field
• Established table relationships
• Defined and established business rules
• Defined all the appropriate views
• Established overall data integrity
For all intents and purposes, your new database is complete; nevertheless, it would be to
your advantage to perform one final review of the overall data integrity of your database.
