For a dynamic query with bind values, do this:

procedre p (prmName varchar2, prmSortField varchar2)
is
    query varchar2(100);
    rc sys_refcursor;
    names_rec names%rowtype;
begin
    query = 'select * From Names Where Name = :name Order By ' || prmSortField
    open rc for query using prmName;
    loop
        fetch rc into names_rec;
        exit when rc%notfound;
        -- process this row
    end loop;
    close rc;
end;

For a dynamic query with bind values, do this:

procedure p (prmName varchar2, prmSortField varchar2)
is
    query varchar2(100);
    rc sys_refcursor;
    names_rec names%rowtype;
begin
    query = 'select * From Names Where Name = :name Order By ' || prmSortField
    open rc for query using prmName;
    loop
        fetch rc into names_rec;
        exit when rc%notfound;
        -- process this row
    end loop;
    close rc;
end;