Function in a query causing a problem ................

Question

Hello Gurus
I have a problem with my select statement which contains 2 function in it. These functions cause the query to run slow. I have cross checked with all the indexes, statistics and index used within the function they are all correct.
Please some one tell me why is this happening. There was a database crash since then this has started to happen. I have revalidated the fucntions and indexes, still it does not help any.
A questions comes to my mind will it be solved by pinning these functions in memory? and how that could be done.
Please help me at the earliest.
Thanks

Answer 1

first function
=========
function CS_GET_AGENT_TRACK_DATA (
v_ACCOUNT_NUM VARCHAR ,
v_USER_ID VARCHAR,
v_OEM_ID NUMBER
return VARCHAR
is
L_INFO VARCHAR(2000) := '';
L_EMPTY_INFO VARCHAR(2000) :='N' || CHR(2) || 'N' || CHR(2) || '0' || CHR(2) ||
cursor get_AGENT_TRACK_DATA (P_ACCOUNT_NUM VARCHAR,P_USER_ID VARCHAR, P_OEM_ID N
UMBER) is
select
NVL(IN_OUT_FLAG,'N') || CHR(2) ||
NVL(AVAILABLE_FLAG,'N') || CHR(2) ||
NVL(AGENT_INCIDENT_LOAD,0) || CHR(2) ||
ASSIST_LIST
from
WEBTEL.CS_AGENT_TRACK
where
AGENT_ACCOUNT_NUM = P_ACCOUNT_NUM and
AGENT_USER_ID = P_USER_ID and
OEM_ID = P_OEM_ID ;
--cursor get_LAST_ACTIVITY_DATE (P_ACCOUNT_NUM VARCHAR,P_USER_ID VARCHAR) is
-- select
-- NVL(IN_OUT_FLAG,'N') || CHR(2) ||
-- NVL(AVAILABLE_FLAG,'N') || CHR(2) ||
-- NVL(AGENT_INCIDENT_LOAD,0) || CHR(2) ||
-- ASSIST_LIST
-- from
-- WEBTEL.CS_AGENT_TRACK
-- where
-- AGENT_ACCOUNT_NUM = P_ACCOUNT_NUM and
-- AGENT_USER_ID = P_USER_ID and
-- OEM_ID = P_OEM_ID ;
BEGIN
OPEN get_AGENT_TRACK_DATA (v_ACCOUNT_NUM, v_USER_ID, v_OEM_ID);
FETCH get_AGENT_TRACK_DATA into L_INFO;
IF (get_AGENT_TRACK_DATA%NOTFOUND) THEN
L_INFO := L_EMPTY_INFO;
END IF;
CLOSE get_AGENT_TRACK_DATA;
IF ((LENGTH(L_INFO) <= 0) or (L_INFO IS NULL)) THEN
L_INFO := L_EMPTY_INFO;
END IF;
RETURN L_INFO;
EXCEPTION WHEN OTHERS THEN RETURN L_EMPTY_INFO;
END;
second function
============
function CS_GET_AGENT_OPEN_COUNT (
v_ACCOUNT_NUM VARCHAR ,
v_USER_ID VARCHAR,
v_ADD_HANDICAP NUMBER default NULL,
v_HANDICAP_OEM NUMBER default NULL
return NUMBER
is
L_INFO NUMBER := 0;
L_RET_VAL NUMBER := 0;
L_USING_AGENT_TRACK NUMBER := 0;
cursor get_AGENT_OPEN_COUNT (P_ACCOUNT_NUM VARCHAR,P_USER_ID VARCHAR) is
select /*+ INDEX_COMBINE(CS_INCIDENT_TABLE) */
count(*)
from
WEBTEL.CS_INCIDENT_TABLE
where
AGENT_ACCOUNT_NUM = P_ACCOUNT_NUM and
AGENT_USER_ID = P_USER_ID and
INCIDENT_STATE < 2 ;
cursor get_HANDICAP_COUNT (P_ACCOUNT_NUM VARCHAR,P_USER_ID VARCHAR, P_OEM_ID NUM
BER) is
select
NVL(AGENT_INCIDENT_LOAD,0)
from
CS_AGENT_TRACK
where
AGENT_ACCOUNT_NUM = P_ACCOUNT_NUM and
AGENT_USER_ID = P_USER_ID and
OEM_ID = P_OEM_ID ;
BEGIN
OPEN get_AGENT_OPEN_COUNT (v_ACCOUNT_NUM, v_USER_ID);
FETCH get_AGENT_OPEN_COUNT into L_INFO;
IF (get_AGENT_OPEN_COUNT%NOTFOUND) THEN
L_INFO := 0;
END IF;
CLOSE get_AGENT_OPEN_COUNT;
L_RET_VAL := L_INFO;
IF ((v_ADD_HANDICAP is not null and length(v_ADD_HANDICAP) > 0) AND
(v_HANDICAP_OEM is not null and v_HANDICAP_OEM > 0)) THEN
L_USING_AGENT_TRACK := WEBTEL.IS_SITE_CONFIG_ON('AGENT_TRACKING_ENABLED',v_HAN
DICAP_OEM);
IF (L_USING_AGENT_TRACK > 0) THEN
OPEN get_HANDICAP_COUNT (v_ACCOUNT_NUM, v_USER_ID, v_HANDICAP_OEM);
FETCH get_HANDICAP_COUNT into L_INFO;
IF (get_HANDICAP_COUNT%NOTFOUND) THEN
L_INFO := 0;
END IF;
CLOSE get_HANDICAP_COUNT;
L_RET_VAL := L_RET_VAL + L_INFO;
END IF;
END IF;
RETURN L_RET_VAL;
EXCEPTION WHEN OTHERS THEN RETURN 0;
END;
These are the two functions
thanks