PL/SQL select list from query

Question

Hello,
I am trying to modifying a PL/SQL process. Wherever there was a reference to the Application ID, I wanted to change it to refer to the Application Alias.
Here is the original code:
declare
   cursor app_cur is
      select aa.application_id||' - '||aa.application_name app_name,
             aa.application_id
        from apex_applications aa
       where exists (select 1
                       from profiles p
                      where p.application_id = aa.application_id);
   cursor user_app_cur (p_user number, p_app number) is
      select to_char(profile_id)
        from user_app_profiles
       where user_id = p_user
         and application_id = p_app;
   v_profile   varchar2(10);
   v_count     number := 0;
   v_class     varchar2(15);
begin
   htp.p('<table class="t3standardalternatingrowcolors" cellpadding="0" cellspacing="0">');
   htp.p('<tr><th class="t3header" >Application</th><th class="t3header" >Profile</th></tr>');
   for app in app_cur loop
      v_count := v_count + 1;
      if mod(v_count,2) = 1 then
         v_class := 't3dataalt';
      else
         v_class := 't3data';
      end if;
      open  user_app_cur(:P3_USER_ID, app.application_id);
      fetch user_app_cur
       into v_profile;
      if user_app_cur%notfound then
         v_profile := 'NONE';
      end if;
      close user_app_cur;
      htp.p('<tr><td class="'||v_class||'">'||app.app_name||
            '</td><td class="'||v_class||'">'||
            apex_item.select_list_from_query(40, v_profile,
              'select description, profile_id from profiles where application_id = '||app.application_id,
           null, 'YES', 'NONE', 'No Profile Assigned', null, null, 'NO')||
            apex_item.hidden(41,app.application_id) ||
          '</td></tr>');
   end loop;
   htp.p('</table>');
end;Here is my revised code:
declare
   cursor app_cur is
      select aa.alias||' - '||aa.application_name app_name,
             aa.alias
        from apex_applications aa
       where exists (select 1
                       from profiles p
                      where p.application_alias = aa.alias);
   cursor user_app_cur (p_user number, p_app varchar2) is
      select to_char(profile_id)
        from user_app_profiles
       where user_id = p_user
         and application_alias = p_app;
   v_profile   varchar2(10);
   v_count     number := 0;
   v_class     varchar2(15);
begin
   htp.p('<table class="t3standardalternatingrowcolors" cellpadding="0" cellspacing="0">');
   htp.p('<tr><th class="t3header" >Application</th><th class="t3header" >Profile</th></tr>');
   for app in app_cur loop
      v_count := v_count + 1;
      if mod(v_count,2) = 1 then
         v_class := 't3dataalt';
      else
         v_class := 't3data';
      end if;
      open  user_app_cur(:P3_USER_ID, app.alias);
      fetch user_app_cur
       into v_profile;
      if user_app_cur%notfound then
         v_profile := 'NONE';
      end if;
      close user_app_cur;
      htp.p('<tr><td class="'||v_class||'">'||app.app_name||
            '</td><td class="'||v_class||'">'||
            apex_item.select_list_from_query(40, v_profile,
              'select description, profile_id from profiles where application_alias = '||app.alias,
           null, 'YES', 'NONE', 'No Profile Assigned', null, null, 'NO')||
            apex_item.hidden(41,app.alias) ||
          '</td></tr>');
   end loop;
   htp.p('</table>');
end;Here is the error:
ORA-06550: line 1, column 153: PL/SQL: ORA-00904: "F109NEWNAME": invalid identifier ORA-06550: line 1, column 7: PL/SQL: SQL Statement ignored
I think that the problem is in the table/LOV generation near the end, but I don't fully understand the apex_item.select_list_from_query function as it is written (I didn't write it).
Any help is greatly appreciated.
Thanks,
Matt

Answer 1

Hi Matt,
This line:
'select description, profile_id from profiles where application_alias = '||app.aliaswould become:
select description, profile_id from profiles where application_alias = F109NEWNAMEif F109NEWNAME was the app_alias. SQL would see F109NEWNAME as a variable as it is not in quotes. Therefore, you should change the line to:
'select description, profile_id from profiles where application_alias = ''' || app.alias || ''''to end up with:
select description, profile_id from profiles where application_alias = 'F109NEWNAME'which would make more sense
Andy