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06.05.2008 at 02:40AM PDT, ID: 23459532
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8.1

please help me to tune this query, taking lot of time due to group by clause

Asked by Parthap in SQL Query Syntax, Databases Miscellaneous, Oracle Database

Tags: , ,

following query is taking lot of time to execute as 'sa_wrk_item_hst' table contains 1 million rows. Please help me to tune this query. I think due to group by clause it is taking lot of time.

SELECT
SWIH.ROUTED_FROM AS CURR_EPR_QUEUE,
TO_CHAR(TRUNC(SWIH.UPDT_DTE),'MM/YYYY') MTNH_YR,
TRUNC(SWIH.UPDT_DTE) DTE,
COUNT(1) AS CLM_CLS_CNT
FROM
SA_WRK_ITM_HST SWIH,
CP_CLM CC
WHERE
SWIH.WRK_ITM_HST_ID IN
(SELECT wrk_itm_hst_id FROM
                     SA_WRK_ITM_HST
                     WHERE
                            ( form_id,wrk_itm_id,wrk_sta_cde,updt_dte)
                                IN
                                      (SELECT form_id,wrk_itm_id,wrk_sta_cde,MAX(updt_dte)
                                      FROM SA_WRK_ITM_HST
                                    WHERE
                                      sccs_ind <> '0' AND
                                     (queue_typ_Cde='01' OR queue_typ_cde='05') AND
                                      routed_from IS NOT NULL --AND
                                    AND (func_role_cde!=priv_func_role_cde OR wrk_sta_cde='28')
                                      GROUP BY form_id,wrk_itm_id,wrk_sta_cde )
                  
 )
 AND CC.CLM_NO=SWIH.CLM_NO
 AND CC.CLM_STA_CDE='02'
GROUP BY
SWIH.ROUTED_FROM,
TO_CHAR(TRUNC(SWIH.UPDT_DTE),'MM/YYYY'),
TRUNC(SWIH.UPDT_DTE);Start Free Trial
[+][-]06.05.2008 at 02:55AM PDT, ID: 21717633

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[+][-]06.05.2008 at 02:59AM PDT, ID: 21717657

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[+][-]06.05.2008 at 03:07AM PDT, ID: 21717695

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[+][-]06.05.2008 at 05:02AM PDT, ID: 21718310

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[+][-]06.05.2008 at 10:42PM PDT, ID: 21726482

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[+][-]06.05.2008 at 11:57PM PDT, ID: 21726772

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About this solution

Zones: SQL Query Syntax, Databases Miscellaneous, Oracle Database
Tags: Oracle, 10G, 10.2.0.4.0
Sign Up Now!
Solution Provided By: orcic
Participating Experts: 4
Solution Grade: B
 
 
[+][-]06.15.2008 at 04:09PM PDT, ID: 21790058

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