DBMS
DATABASE MANAGEMENT SYSTEMS
The Design Process
The Design Process
Step 1: Data requirements
Example 1: Tree Structure
Step 2: Bubble Charts
Bubble charts: basic rules
Step 3: Functional dependencies
Associations and Links
Step 4: linking data items
Primary keys and attributes
Step 5: Grouping primary keys and attributes
Step 6: database structures
Step 7: Re-orient the graph
Step 8: Adding attributes
Step 9: Eliminate all links
Step 10:Relational database
Step 11:Relational Extension