I would like to join multiple Tables add a dummy leading row additionally to my SELECT query with some custom Text for each queried field.
Is there a way to do that?

Like

SELECT table1.x, table2.y, table3.z
FROM table1
LEFT JOIN table2
ON …
LEFT JOIN table3
ON …

To have something like:

| table1.x | table2.y | table3.z |
| bla | blabla | blab |
| Result | Result | Result |
| Result | Result | Result |