Help with Concat and ComboBox

[kriggo15]

I have a SQL table with a column called GovernedByRulesRID (varchar2) and I'm trying to patch in multiple selections from a ComboBox. I've read a few posts on the forum but the suggestions I've seen, haven't worked for me. I want each selection to be inserted into the field one after another ("Selection1", "Selection2", "Selection3") surrounded by quotes and separated with a comma.

I tried just getting the first part working and am getting an error that the identified isn't recognized. What am I doing wrong?

[gabibalaban]

Please write only:

        Concat(ComboBox2.SelectedItems,GovernedByRulesRID & ", ")

because you need to refer at entire table, not to a specific column (in this case RIS).