JSON列を含む表を更新するコード

jig_chothes_dml.sql

begin
    case :APEX$ROW_STATUS
    when 'C' then
        insert into jig_clothes(
            name
            ,features
            ,price
        )
        values
        (
            :NAME
            ,json_object(
                key 'color' value :COLOR
                ,key 'size' value :SIZE
            )
            ,:PRICE
        )
        returning id into :ID;
    when 'U' then
        update jig_clothes set
            name = :NAME
            ,features = json_object(
                key 'color' value :COLOR
                ,key 'size' value :SIZE
            )
            ,price = :PRICE
        where id = :ID;
    when 'D' then
        delete from jig_clothes where id = :ID;
    end case;
end;