Performance Problem While Selecting a Query....

Question

Hi Users
I have problem with performance with appliction
where are using D2K frent end and backend oracle 9i
we have a validaion buttion that is taking lot of time to check the date like 500 records
i want some links about performance issue process pls help.
Here some of the query taking more than 1sec to more
1)
SELECT      
/*+(INDEX(KBS_CHKSHTCARDTB(IND1_CHKSHTCARD))*/
COUNT(DISTINCT A.KBCK_CHKSHEET_NO)
FROM     
KBS_CHKSHTCARDTB A ,KBS_CHKSHTHDRTB B                              WHERE A.KBCK_CHKSHEET_NO=B.KBCH_CHKSHEET_NO          
AND KBCK_E_DATE =TRUNC(SYSDATE)
AND KBCH_PRINT_STATUS='P'     
OutPut: 206
Time : 1sec
2)
UPDATE KBS_CARDMASTERTB
SET KBCM_LOCK_FROM = KBCM_LOCK_FROM_CONTROL,
KBCM_LOCK_STATUS= NULL
     WHERE KBCM_LOCK_FROM_CONTROL is not null
     and KBCM_LOCK_FROM IS NULL
     and KBCM_LOCK_FROM_CONTROL <=trunc(sysdate)      
     AND KBCM_LOCK_STATUS = 'Y'
and KBCM_UNIQUE_IDNO IN(SELECT DISTINCT KBSA_UNIQUE_IDNO
FROM KBS_SCANTB WHERE TRUNC(KBSA_E_DATE)      = TRUNC(:KANBAN_CTRL_BLK.DAT)
AND KBSA_TRUCK_SQ_NO           = :Kanban_ctrl_blk.cycl
AND KBSA_ERROR_CODE      IS NULL)
AND (KBCM_VENDOR_NO,KBCM_PLANT_CODE)in (SELECT DISTINCT kbsa_vendor_no,KBSA_PLANT_CODE
FROM KBS_SCANTB      WHERE TRUNC(KBSA_E_DATE)      = TRUNC(:KANBAN_CTRL_BLK.DAT)           AND KBSA_TRUCK_SQ_NO = :Kanban_ctrl_blk.cycl AND KBSA_ERROR_CODE      IS NULL)
AND KBCM_PROCESS_CODE IN (SELECT DISTINCT KBSA_PROCESS_CODE
FROM KBS_SCANTB                                              WHERE TRUNC(KBSA_E_DATE)      = TRUNC(:KANBAN_CTRL_BLK.DAT) AND KBSA_TRUCK_SQ_NO = :Kanban_ctrl_blk.cycl
AND KBSA_ERROR_CODE      IS NULL);
OutPut: Totatl Number of Table:29288
Time : more than     5sec
3)
CURSOR GET_TEMP_CARDS_SWIPED_CUR IS
     SELECT KBCM_VENDOR_NO
                    ,KBCM_PLANT_CODE
                    ,KBCM_FAMILY --ADDED BY SUJITH.C TO SUPPORT PSMS2
                    ,KBCM_BACK_NO
                    ,KBCM_UNIQUE_IDNO
                    ,KBCM_KANBAN_TYPE
     FROM KBS_CARDMASTERTB
     WHERE KBCM_KANBAN_TYPE IN ('T','B')
     AND KBCM_UNIQUE_IDNO IN
(SELECT KBSA_UNIQUE_IDNO
FROM          KBS_SCANTB
WHERE KBSA_E_DATE                = :DAT
AND          KBSA_TRUCK_SQ_NO      = :CYCL
AND KBSA_ERROR_CODE      IS NULL
AND KBSA_TYPE IS NULL);
Thanks Advance ........

Answer 1

[When your query takes too long...|http://forums.oracle.com/forums/thread.jspa?messageID=1812597#1812597]
[How to post a SQL statement tuning request|http://forums.oracle.com/forums/thread.jspa?threadID=863295&tstart=0]