Hi i need to mix (more than join) three tables, but the id could be present or not on each table (Please see the example below).

I have spend a few days trying join and union but all time some data is missing!!! can someone give me a fresh idea?

Thanks

[![data example](https://i.stack.imgur.com/rqByu.png)](https://i.stack.imgur.com/rqByu.png)