focus
1. Two-layer mapping
2. Database design process
3. ER model
4. Relational Algebra
Cartesian Product
natural connection
5. Normalization Theory
key
find candidate key
example
Primary and non-primary properties
Paradigm
6. Pattern decomposition
Lossless Decomposition - Tabular Method
Lossless Decomposition-Formula Method
7. sql language
build table
Modify and delete tables
Inquire
8 Concurrency Control
9. Database Integrity Constraints
