I am trying to concatenate 2 columns from oracle apex to fill out one of the column. P3_ID contains text data like 09842 and P3_Type also contains data like 04214. I am trying to concatenate P3_ID +'.'+P3_Type (09842.04214) to put it into p3_total. So I add default value into P3_total to
select concat('P3_ID'+'.'+'P3_Type') from dual;
but It doesn't work for me. Does anyone have an idea to make p3_total to work?