Hi,

If both tables can be linked in a 1 to 1 relationship, then you could use triggers on change of each of the original tables to launch a QAction and then in there read both of them and merge them into a 3rd table.

If both tables share a primary key, you can reuse one of the tables and add columns of the type retrieved to compensate for the info from the other table, as well as copy the values within the QAction.