In a Query how do you do DATE_ADD

Did you really had a look at the screenshot I posted first?
All field names and tables with backtics. Also in function DATE_ADD. Works with LibreOffice/MariaDB when SQL-Mode has been pressed.

I’ve learned a lot, thanks for the clarification about the varous quotes. Now I need to work on getting mariadb to pick out the record with the latest information (MAX date) in a 1 to many database relationship but I figure I should open a specific record about that.

I’ve seen it now. Just took me a while. People were saying quotes and double quotes, finally noticed the back tic’s/quotes.