SQL- UNION ALL a large number of tables

Question

I have a large number of tables (some thousands) containing similar data. I would like to run some reports from these. The table names are similar, so I can get a list of table

Answer 1

All these tables have the same data types and number of columns, because if this not the case then you will not be able to use UNION sentences, however, it's very strange to merge all the information in this way, could you put some examples to clarify it.