APEX

Hi all,

I have another question about my project. I have a data and made modal page using it (to edit the actual table on the main page). But, i want to change the default text field to dropdown - "select list" type editor. I have 3 type of the "location name" and want to show them on the drop down list.

To do that, i chose "select list" for type on identification. Then, i chose type: "sql query" for list of values and build it using Data -> the location (the name of the raw)-> run -> return.

But, i get this error message: "

What can i do for solving it? Thanks for any help!!!!.

The following screenshots are for to clarify my question and information i provided.

Thanks!