How to use the IDs of the three tables with the same one and then SegmentFault

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Don't you understand what you mean? Do you want to perform Association query?

The question cannot be answered, and the question cannot be clearly described.

Note: This is the problem that is half written...

This table design is also speechless and does not conform to the three paradigm.
Since three tables can share one ID, why should they be divided into three tables? No rows need to be merged into a table?

I am not clear about the problem...