OIDs for an Available MIB NOT Working for SNMP

Question

Hello All,
Device: Cisco Catalyst 4510R+E
IOS: Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSAL-M), Version 03.03.02.SG RELEASE SOFTWARE (fc1)
I am trying to do snmpwalk/snmpget requests to our switch for CPU/Memory/Flash type usages. When I did an snmpwalk in order to get ALL OID's values, one of the OIDs which is for "Agent Capabilities for OLD-CISCO-CPU-MIB", which says it's supported. But when I try to use one of the OIDs found in that MIB on Cisco.com, it returns with the following:
Version 1 Attempt:
# snmpget -v 1 -c public  x.x.x.x  1.3.6.1.4.1.9.2.1.57
Error in packet
Reason: (noSuchName) There is no such variable name in this MIB.
Failed object: SNMPv2-SMI::enterprises.9.2.1.57
Version 2c Attempt:
# snmpget -v2c -c public x.x.x.x 1.3.6.1.4.1.9.2.1.57
SNMPv2-SMI::enterprises.9.2.1.57 = No Such Instance currently exists at this OID
Any idea why this OID would not be working when it says it supports the OLD-CISCO-CPU-MIB..? Or does anyone know of some OIDs that I could try that would get me any of CPU, Memory, Flash, etc Usages...? I've checked Cisco SNMP Object Navigator, but none of the CPU one's I've tried seem to work.
Any thoughts or suggestions would be much appreciated.
Thanks in Advance,
Matt

Answer 1

You are getting this error because your SELECT statement is not returning any rows. You need to do something like:
DECLARE
  l_count number:=0;
  CURSOR check_emp IS
    SELECT COUNT(ename) cnt
      FROM emp
     WHERE ename = :p14_ename;
BEGIN
  IF :p14_ename IS NOT NULL AND :REQUEST ='CREATE' THEN
    OPEN check_emp;
    FETCH check_emp INTO l_count;
    IF (l_count > 0) THEN
      CLOSE check_emp;
      return l_count||' This employee name already exists. Please enter a new name.';
    END IF;
    CLOSE check_emp;
  END IF;
END;Mike