Mindmap
Introduction
Mind map: data management and databases
Inhalt der Mindmap
Introduction
Data Managment
the Hierarchy of Data
- a binary digit
- Byte
- Caracter
- Field
- Record
- File
- Database
Data Entities, Attributes, and keys
- entity
- Attribute
- Data item
- Key
- Primary key
The Database Approach
- Traditional Approach
- Data Approach
Data Modeling
- Logical design
- physical design
- Data Model
- Entity Relationship (ER)
Relational Database
- Relation Model
- Selecting
- Projecting
- Linking
- Data Clean up