Question

Ok so I know we can join tables ‘across’ in MySQL to tables using a id column.

I have two databases where I need to join two tables that are almost identical.

I need to join these ‘down’, e.g similar to inserting the whole of one table into the other. Not a normal cross join.

Does MySQL allow me to do this?

Answer 1

UNION is a good way to accomplish this.

SELECT * FROM table1
UNION
SELECT * FROM table2

Just make sure number of columns being returned are the same, and data type matches.