What are the stages of database design?
According to the standardized design method, database design is divided into six stages: 1. Requirements analysis; 2. Conceptual structure design; 3. Logical structure design; 4. Database physical design; 5. Database implementation. ; 6. Database operation and maintenance.
According to the standardized design method, a complete database design is generally divided into the following six stages:
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1. Requirements analysis
Analyze user needs, including data, functionality and performance requirements.
2. Conceptual structure design
Mainly uses the E-R model for design, including drawing E-R diagrams.
3. Logical structure design
By converting the E-R diagram into a table, the conversion from the E-R model to the relational model is realized and the relationship is standardized.
4. Database physical design
The main thing is to choose the appropriate storage structure and storage path for the designed database.
5. Database implementation
includes programming, testing and trial operation.
6. Database operation and maintenance
System operation and daily maintenance of the database.
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