Function taking longer time to execute

Question

Hi,
I have a scenario where i am using a TABLE FUNCTION in a join con condition with a Normal TABLE but its getting longer time to execute:
The function is given below:
CREATE OR REPLACE FUNCTION GET_ACCOUNT_TYPE(
SUBNO VARCHAR2 DEFAULT NULL
RETURN ACCOUNT_TYP_KEY_1 PIPELINED AS
V_SUBNO VARCHAR2(20);
V_SUBS_TYP VARCHAR2(10);
V_ACCOUNT_TYP_KEY VARCHAR2(10);
V_ACCOUNT_TYP_KEY_1 VARCHAR2(10);
V_SUBS_TYP_KEY_1 VARCHAR2(10);
V_VAL1 VARCHAR2(255);
CURSOR C1_REC2 IS SELECT SUBNO,NULL
FROM CTVA_ETL.RA_CRM_USER_INFO
GROUP BY SUBNO,SUBSCR_TYPE;
--CURSOR C1_REC IS SELECT SUBNO,SUBSCR_TYPE,ACCOUNT_TYPE_KEY
--FROM CTVA_ETL.RA_CRM_USER_INFO,DIM_RA_MAST_ACCOUNT_TYPE
--WHERE ACCOUNT_TYPE_KEY=RA_CRM_USER_INFO.SUBSCR_TYPE
--WHERE MSISDN='8615025400109'
--WHERE MSISDN IN ('8615025400068','8615025400083','8615025400101','8615025400132','8615025400109')
CURSOR C1_REC IS SELECT SUBNO,SUBSCR_TYPE--,ACCOUNT_TYPE_KEY
FROM CTVA_ETL.RA_CRM_USER_INFO
GROUP BY SUBNO,SUBSCR_TYPE;
BEGIN
OPEN C1_REC;
LOOP
FETCH C1_REC INTO V_SUBNO ,V_SUBS_TYP;
IF V_SUBS_TYP IS NOT NULL THEN
BEGIN
SELECT
ACCOUNT_TYPE_KEY
INTO
V_ACCOUNT_TYP_KEY
FROM
DIM_RA_MAST_ACCOUNT_TYPE,
RA_CRM_USER_INFO
WHERE
ACCOUNT_TYPE_KEY=V_SUBS_TYP
AND ACCOUNT_TYPE_KEY=RA_CRM_USER_INFO.SUBSCR_TYPE
AND SUBNO=V_SUBNO;
EXCEPTION
WHEN NO_DATA_FOUND THEN
V_ACCOUNT_TYP_KEY := '-99';
V_ACCOUNT_TYP_KEY_1 := V_ACCOUNT_TYP_KEY;
END;
ELSE
V_ACCOUNT_TYP_KEY_1:='-99';
END IF;
FOR CUR IN (select
DISTINCT V_SUBNO SUBNO_TYP_2 ,V_ACCOUNT_TYP_KEY_1 ACCOUNT_TYP
from dual)
LOOP
PIPE ROW (ACCOUNT_TYP_KEY(CUR.SUBNO_TYP_2,CUR.ACCOUNT_TYP));
END LOOP;
END LOOP;
RETURN;
CLOSE C1_REC;
END;
The above function wil return rows with respect to SUBSCRIBER TYPE (if Not Null then it will return the ACCOUNT KEY and SUBNO else '-99').
But its not returning any rows so all the rows will come as
SUBNO ACCOUNT_TYP
21 -99
22 -99
23 -99
24 -99
25 -99
Thanks and Regards

Answer 1

Hi LMLobo,
In addition to Sebastian’s answer, you can refer to the document
Server Memory Server Configuration Options to check whether the maximum server memory setting of the SQL Server is changed on the new server. Besides, you can also compare the
network packet size setting of the SQL Server as well as the network connectivity on both servers. Besides, you can refer to the following link to troubleshooting SSIS package performance
issue:
http://technet.microsoft.com/en-us/library/dd795223(v=sql.100).aspx.
Regards,
Mike Yin
TechNet Community Support