Mapa mental
Database Desing
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Database Desing
Database Desing
- Not Duplicate Information
- It is not good for information to have the same function.
- Be Accurate
- Analyze the information in detail so that you don't have errors
- be completeness
- try to make the information as clear as possible
- Not Duplicate Information
The Design Process
- 1. Have a database purpose or objective
- 2. Gathering information
- We need to collect all the information so that we do not leave important data
- 3. Divide information into tables
- 4. In each table place the columns and in each column place the corresponding data
- 5. Each table must have a pk and fk key
- Pk: is the main or unique data in the example table the id.
- Fk: helps to join a table with another example table Auto with driver have different data but relate to each other