Best data model design based on a generalization relationship
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19-06-2021 - |
문제
What is the best approach to design a data model based on a generalization relationship. For example imagine there is a based class A and two derived class B and C that inherit class A. Now I want design data model. I have three choices
1) Create Table A and having a type column for specifying B and C data.
2) Create Table A, B and C Just like my class diagram and relate B and C to A.
3) Create Table A, B and C but don't relate B and C to A.
Any clue would be appreciated
해결책
Check out this article. Although it is written for JPA, it tells you the pros and cons of each of the strategies you mentioned.
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