3985608
Description
Mind Map by Barbara Gerwien, updated more than 1 year ago
|
Created by Barbara Gerwien
over 9 years ago
|
|
Database Schema
Annotations:
- This is a complete logical view of the database.
- All tables
Annotations:
- Relations - All relations are tables but not all tables are relations.
- Columns in each table
- Primary Key of Each table
Annotations:
- Primary Key values must be unique in every row. Also known as the Entity Integrity Constraint
- Foreign Keys that link the tables together
Annotations:
- Foreign Key - A column or composite of columns that is the primary key of a table other than the one in which it appears.
Media attachments
0 comments
Want to create your own Mind Maps for free with GoConqr? Learn more.