ORA-06573 ???

From: Stefan Jahnke <stefan.jahnke_at_d2vodafone.de>
Date: Tue, 08 May 2001 04:31:00 -0700
Message-ID: <F001.002FBCB9.20010508031522@fatcity.com>

Hi,

I get this error if I give a (standalone) function in a where clause:

ORA-06573: Function WSNADDR modifies package state, cannot be used here

What exactly does it mean and how can I workaround it ? The statement I tried to issue looks like this:

select rtrim(substr(wsnaddr(env_wsnaddr),45,3)) IP, db_instance_node MACHINE
from environment e, dbinstancenode dn where
rtrim(substr(wsnaddr(env_wsnaddr),45,3))=rtrim(substr(db_inst_node_desc,11,3));

-> here's the problem.

WSNADDR is a self-defined function that looks like this:

CREATE OR REPLACE FUNCTION WSNADDR (v_WSNAddress IN VARCHAR2) RETURN VARCHAR2 IS

v_Port  VARCHAR2(8);
v_IPAddr        VARCHAR2(8);
v_IPDecode      VARCHAR2(16);
v_IPPart        VARCHAR2(3);
v_DecodeWSN VARCHAR2(60);

BEGIN
DBMS_OUTPUT.ENABLE(64000);

  v_Port := SUBSTR(v_WSNAddress,3,8);
  v_IPAddr := SUBSTR(v_WSNAddress,11,8);
  v_IPDecode := '';

  FOR v_Index IN 0 .. 3 LOOP
    v_IPPart := TO_CHAR(HEXTONUMBER(SUBSTR(v_IPAddr,2*v_Index+1,2)));     IF (v_Index < 3) THEN
      v_IPDecode := v_IPDecode || v_IPPart || '.';     ELSE
      v_IPDecode := v_IPDecode || v_IPPart;     END IF;
  END LOOP;
  v_DecodeWSN := 'Port: ' || v_Port || ' 0xIP: ' || v_IPAddr || ' IP: ' || v_IPDecode;
  RETURN v_DecodeWSN;
END WSNADDR;
/

The above used function HEXTONUMBER just converts a hex into a number (what a surprise ;).
The purpose of this function is to turn Tuxedo WSN addresses into a readable format. WSN addresses look like this:

0x000285ca8b07ca49

They contain the IP and the port where the service runs. The function's output looks like this:

Port: 000285ca 0xIP: 8b07ca49 IP: 139.7.202.73

Any ideas ?

-- 
Regards,
Stefan Jahnke
BOV AG
@:D2 Vodafone, Abt.: FIBM
AMS-Gebäude: E6 R08
Tel.: 0211/533-4893

--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Stefan Jahnke
  INET: stefan.jahnke_at_d2vodafone.de

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Received on Tue May 08 2001 - 06:31:00 CDT