Pass a variable into procedure to use as column in select statement

I'm new to PL/SQL and having trouble passing a variable into a procedure and using it as a column identifier in a select statement.

I'm using this as a universal procedure to pass access information to applications based on user authorization. I have a table which includes all users with a column for all applications. I simple 'Y' or 'N' indicates which applications the user can access.
I want to pass in the application name (This will as be the column name) and through a simple select statement needed access information.
I know that I can not use a bind variable as an identifier (as my example attempts), but how or can I accomplish this another way. I really don't want to write 15 different select statements for each application, plus don't want to change the procedure every time I need to add a new application (column) to the user table.

He is an example of what I'm trying to do:

Procedure Schema_Access
(i_User_ID varchar,i_APP_ID varchar, o_User_ID out varchar, o_Password out varchar)
IS
v_Access varchar(1);
BEGIN
    select i_APP_ID into v_Access from User_Main where User_ID = UPPER(i_User_ID);

    If v_Access = 'Y' then

        o_User_ID := 'UserName';
        o_Password := 'Password';
    else
        o_User_ID := i_User_ID;
        o_Password := 'No Access';

  If the are better ways to accomplish the same task, please let me know.

Thanks in advance Received on Thu Apr 03 2008 - 11:57:38 CDT