Policy predicate has error

Question

i'm building my where clause inside the function that gets executed by a policy. the where clause is a string that looks something like this after it is built:
deptid IN ('00000', '00001', '00005'). the problem i'm having is when there are alot (1000+) dept ids to be included in the IN clause. I've tried creating a loop so that there are only 100 dept ids in each IN clause because from what i've read there is a limit of 255 parameters for an IN clause. Doing this, my string that i build looks structurally sound as i'm able to see it using the dbms_output.put_line(). It looks something like this:
deptid IN ('00000', '00001', '00002', ....) or deptid IN ('00006', '00007', '00008', ....)
also, the total number of characters for the string should be fine, as it is around 14,000 when everything is concatenated. so why do i get the error that the policy predicate is bad?? i'm thinking there is some size limitation i'm not aware of.

Answer 1

I tend to believe that you probably run into some misspellings.
Cause what are you doing differently?:
SQL> create or replace function emp_pol_func (
  2     p_schema   in   varchar2,
  3     p_object   in   varchar2
  4  )
  5     return varchar2
  6  as
  7     l_return_value   long;
  8  begin
  9     l_return_value :=
10        'deptno IN (''63701'', ''00135'', ''00136'', ''00201'', ''00202'', ''
00203'', ''00250'', ''00301'', ''00302'', ''00401'', ''00540'', ''00542'', ''006
01'') OR deptno IN (''02704'', ''02705'', ''02706'', ''02707'', ''02708'', ''027
09'', ''02718'', ''02719'', ''02737'', ''02738'', ''02739'', ''02740'', ''10'',
''20'')';
11     dbms_output.put_line ('Length: ' || length (l_return_value));
12     return l_return_value;
13  exception
14     when others
15     then
16        dbms_output.put_line (sqlerrm (sqlcode));
17  end emp_pol_func;
18  /
Funktion wurde erstellt.
SQL> begin
  2     dbms_rls.add_policy (object_schema        => user,
  3                          object_name          => 'EMP',
  4                          policy_name          => 'EMP_POL',
  5                          function_schema      => user,
  6                          policy_function      => 'EMP_POL_FUNC',
  7                          statement_types      => 'SELECT',
  8                          update_check         => false,
  9                          enable               => true
10                         );
11  end;
12  /
PL/SQL-Prozedur erfolgreich abgeschlossen.
SQL>
SQL> select empno, ename from emp
  2  /
     EMPNO ENAME
      7839 KING
      7782 CLARK
      7566 JONES
      7788 SCOTT
      7902 FORD
      7369 SMITH
      7876 ADAMS
      7934 MILLER
8 Zeilen ausgewõhlt.
Length: 261
Length: 261   <-------------------------   length can be longer than 255