Question

tune the query ( distinct )

Asked by: vishali_vishu

i created a bitmap index on event_25 and an b-tree index on order_no_10 and the query is executing for 2.5 mins.....

if i remove the distinct ......it is running in seconds....

what should i do ?

SELECT DISTINCT g1.state_5 state, g1.order_no_10 asr_no, g1.ccna_22 ccna,
                g1.provisioning_center_9 prov_center, g1.pon_12 pon,
                g1.related_order_13 rord, g1.version_11 ver,
                g1.product_14 product, g1.svc_type_sc_18 sc,
                DECODE (g1.activity_15,
                        'N', 'New',
                        'D', 'Disco',
                        'C', 'Change'
                       ) activity,
                g1.st_16 st, g1.crdd_jep_32 crdd_jep, g1.ead_jep_33 ead_jep,
                (CASE
                    WHEN ead_jep_33 LIKE 'H37%'
                       THEN DECODE (ead_jep_33,
                                    'H37A', 'Internal AT&T Initiated (Pre-ASR)',
                                    'H37B', 'Internal AT&T Initiated (Post-ASR)',
                                    'H37C', 'Customer Initiated (Pre-ASR)',
                                    'H37D', 'Customer Initiated (Post-ASR)',
                                    'H37E', 'Provisioning',
                                    'H37F', 'Provisioning',
                                    'H37G', 'Provisioning',
                                    'H37H', 'Provisioning',
                                    'H37I', 'Cancelled (Pre-ASR)',
                                    'H37J', 'Cancelled (Post-ASR)',
                                    'H37K', 'Internal on EFMS Escal',
                                    'H37M', 'Provisioning',
                                    'H37P', 'Database Discrepancy',
                                    'H37R', 'Internal on EFMS Escal',
                                    'H37S', 'Customer Initiated (EFMS)',
                                    'H37T', 'Escalations for FOC EAD or DLR (EFMS)',
                                    'H37X', 'Provisioning',
                                    'H37Z', 'Provisioning'
                                   )
                    WHEN crdd_jep_32 LIKE 'H37%'
                       THEN DECODE (crdd_jep_32,
                                    'H37A', 'Internal AT&T Initiated (Pre-ASR)',
                                    'H37B', 'Internal AT&T Initiated (Post-ASR)',
                                    'H37C', 'Customer Initiated (Pre-ASR)',
                                    'H37D', 'Customer Initiated (Post-ASR)',
                                    'H37E', 'Provisioning',
                                    'H37F', 'Provisioning',
                                    'H37G', 'Provisioning',
                                    'H37H', 'Provisioning',
                                    'H37I', 'Cancelled (Pre-ASR)',
                                    'H37J', 'Cancelled (Post-ASR)',
                                    'H37K', 'Internal on EFMS Escal',
                                    'H37M', 'Provisioning',
                                    'H37P', 'Database Discrepancy',
                                    'H37R', 'Internal on EFMS Escal',
                                    'H37S', 'Customer Initiated (EFMS)',
                                    'H37T', 'Escalations for FOC EAD or DLR (EFMS)',
                                    'H37X', 'Provisioning',
                                    'H37Z', 'Provisioning'
                                   )
                    ELSE 'NEO Escalation'
                 END
                ) expedite_desc,
                TO_CHAR (g1.order_due_date_38, 'MM/DD/YYYY') dd_due,
                TO_CHAR (g1.order_create_date_24, 'MM/DD/YYYY') create_date,
                g1.dd_jep_34 dd_jep, g1.jmc_jep_35 jmc_jep, g1.city_4 city,
                g1.area_mgr_3 om, g1.region_1 region,
                TO_CHAR ((SELECT due_date_26
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'XCDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) xcdd_due,
                TO_CHAR ((SELECT comp_date_27
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'XCDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) xcdd_comp,
                (SELECT jep_code_28
                   FROM gnfo_report_asr
                  WHERE order_no_10 = g1.order_no_10
                    AND event_25 = 'XCDD'
                    AND ROWNUM = 1) xcdd_jep,
                TO_CHAR ((SELECT due_date_26
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'EDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) edd_due,
                TO_CHAR ((SELECT comp_date_27
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'EDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) edd_comp,
                TO_CHAR ((SELECT due_date_26
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'INSC'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) insc_due,
                TO_CHAR ((SELECT comp_date_27
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'INSC'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) insc_comp,
                TO_CHAR ((SELECT due_date_26
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'HXDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) hxdd_due,
                TO_CHAR ((SELECT comp_date_27
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'HXDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) hxdd_comp,
                (SELECT jep_code_28
                   FROM gnfo_report_asr
                  WHERE order_no_10 = g1.order_no_10
                    AND event_25 = 'HXDD'
                    AND ROWNUM = 1) hxdd_jep,
                TO_CHAR ((SELECT due_date_26
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'LCDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) lcdd_due,
                TO_CHAR ((SELECT comp_date_27
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'LCDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) lcdd_comp,
                (SELECT jep_code_28
                   FROM gnfo_report_asr
                  WHERE order_no_10 = g1.order_no_10
                    AND event_25 = 'LCDD'
                    AND ROWNUM = 1) lcdd_jep,
                TO_CHAR ((SELECT due_date_26
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'LABL'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) labl_due,
                TO_CHAR ((SELECT comp_date_27
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'LABL'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) labl_comp,
                (SELECT jep_code_28
                   FROM gnfo_report_asr
                  WHERE order_no_10 = g1.order_no_10
                    AND event_25 = 'LABL'
                    AND ROWNUM = 1) labl_jep,
                TO_CHAR ((SELECT due_date_26
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'PLDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) pldd_due,
                TO_CHAR ((SELECT comp_date_27
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'PLDD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) pldd_comp,
                (SELECT jep_code_28
                   FROM gnfo_report_asr
                  WHERE order_no_10 = g1.order_no_10
                    AND event_25 = 'PLDD'
                    AND ROWNUM = 1) pldd_jep,
                TO_CHAR ((SELECT due_date_26
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'CTD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) ctd_due,
                TO_CHAR ((SELECT comp_date_27
                            FROM gnfo_report_asr
                           WHERE order_no_10 = g1.order_no_10
                             AND event_25 = 'CTD'
                             AND ROWNUM = 1),
                         'MM/DD/YYYY'
                        ) ctd_comp,
                (SELECT jep_code_28
                   FROM gnfo_report_asr
                  WHERE order_no_10 = g1.order_no_10
                    AND event_25 = 'CTD'
                    AND ROWNUM = 1) ctd_jep,
                TO_CHAR (g1.order_create_date_24, 'YYYY') YEAR
           FROM gnfo_report_asr g1

                                  
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Asked On
2008-09-15 at 09:04:54ID23732416
Tags

oracle

Topics

Oracle 9.x

,

Oracle Database

,

Oracle 10.x

Participating Experts
3
Points
500
Comments
5

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Answers

 

by: DiscoNovaPosted on 2008-09-15 at 12:51:16ID: 22482210

First of all - if there already isn't, create the following index:

create index gnfo_report_asr_jix on gnfo_report_asr (event25, order_no_10, due_date_26, comp_date_27, jep_code_28);

...that will make the joining (which there is an awful lot in this query:) a tad bit easier...

Then, you could try modifying your query into something like the following:

SELECT DISTINCT
	g1.state_5 state, g1.order_no_10 asr_no, g1.ccna_22 ccna,
	g1.provisioning_center_9 prov_center, g1.pon_12 pon,
	g1.related_order_13 rord, g1.version_11 ver,
	g1.product_14 product, g1.svc_type_sc_18 sc,
	DECODE (g1.activity_15,
		'N', 'New',
		'D', 'Disco',
		'C', 'Change'
	) activity,
	g1.st_16 st, g1.crdd_jep_32 crdd_jep, g1.ead_jep_33 ead_jep,
	(CASE
		WHEN ead_jep_33 LIKE 'H37%'
			THEN DECODE (ead_jep_33,
				'H37A', 'Internal AT&T Initiated (Pre-ASR)',
				'H37B', 'Internal AT&T Initiated (Post-ASR)',
				'H37C', 'Customer Initiated (Pre-ASR)',
				'H37D', 'Customer Initiated (Post-ASR)',
				'H37E', 'Provisioning',
				'H37F', 'Provisioning',
				'H37G', 'Provisioning',
				'H37H', 'Provisioning',
				'H37I', 'Cancelled (Pre-ASR)',
				'H37J', 'Cancelled (Post-ASR)',
				'H37K', 'Internal on EFMS Escal',
				'H37M', 'Provisioning',
				'H37P', 'Database Discrepancy',
				'H37R', 'Internal on EFMS Escal',
				'H37S', 'Customer Initiated (EFMS)',
				'H37T', 'Escalations for FOC EAD or DLR (EFMS)',
				'H37X', 'Provisioning',
				'H37Z', 'Provisioning'
			)
		WHEN crdd_jep_32 LIKE 'H37%'
			THEN DECODE (crdd_jep_32,
				'H37A', 'Internal AT&T Initiated (Pre-ASR)',
				'H37B', 'Internal AT&T Initiated (Post-ASR)',
				'H37C', 'Customer Initiated (Pre-ASR)',
				'H37D', 'Customer Initiated (Post-ASR)',
				'H37E', 'Provisioning',
				'H37F', 'Provisioning',
				'H37G', 'Provisioning',
				'H37H', 'Provisioning',
				'H37I', 'Cancelled (Pre-ASR)',
				'H37J', 'Cancelled (Post-ASR)',
				'H37K', 'Internal on EFMS Escal',
				'H37M', 'Provisioning',
				'H37P', 'Database Discrepancy',
				'H37R', 'Internal on EFMS Escal',
				'H37S', 'Customer Initiated (EFMS)',
				'H37T', 'Escalations for FOC EAD or DLR (EFMS)',
				'H37X', 'Provisioning',
				'H37Z', 'Provisioning'
			)
		ELSE 'NEO Escalation'
	END) expedite_desc,
	TO_CHAR (g1.order_due_date_38, 'MM/DD/YYYY') dd_due,
	TO_CHAR (g1.order_create_date_24, 'MM/DD/YYYY') create_date,
	g1.dd_jep_34 dd_jep, g1.jmc_jep_35 jmc_jep, g1.city_4 city,
	g1.area_mgr_3 om, g1.region_1 region,
	xcdd.due_date xcdd_due, xcdd.comp_date xcdd_comp, xcdd.jep_code xcdd_jep,
	edd.due_date edd_due, edd.comp_date edd_comp,
	insc.due_date insc_due, insc.comp_date insc_comp,
	hxdd.due_date hxdd_due, hxdd.comp_date hxdd_comp, hxdd.jep_code hxdd_jep,
	lcdd.due_date lcdd_due, lcdd.comp_date lcdd_comp, lcdd.jep_code lcdd_jep,
	labl.due_date labl_due, labl.comp_date labl_comp, labl.jep_code labl_jep,
	pldd.due_date pldd_due, pldd.comp_date pldd_comp, pldd.jep_code pldd_jep,
	ctd.due_date ctd_due, ctd.comp_date ctd_comp, ctd.jep_code ctd_jep,
	TO_CHAR (g1.order_create_date_24, 'YYYY') YEAR
FROM
	gnfo_report_asr g1
LEFT JOIN -- if you can get away with a simple JOIN, change this (I put it as LEFT JOIN just in case)
	(SELECT rownum r, order_no_10, TO_CHAR(due_date_26, 'MM/DD/YYYY') due_date, TO_CHAR(comp_date_27, 'MM/DD/YYYY') comp_date, jep_code_28 jep_code FROM gnfo_report_asr WHERE event_25='XCDD') xcdd
	ON xcdd.order_no_10=g1.order_no_10 and xcdd.r = 1
LEFT JOIN -- if you can get away with a simple JOIN, change this (I put it as LEFT JOIN just in case)
	(SELECT rownum r, order_no_10, TO_CHAR(due_date_26, 'MM/DD/YYYY') due_date, TO_CHAR(comp_date_27, 'MM/DD/YYYY') comp_date FROM gnfo_report_asr WHERE event_25='EDD') edd
	ON edd.order_no_10=g1.order_no_10 and edd.r = 1
LEFT JOIN -- if you can get away with a simple JOIN, change this (I put it as LEFT JOIN just in case)
	(SELECT rownum r, order_no_10, TO_CHAR(due_date_26, 'MM/DD/YYYY') due_date, TO_CHAR(comp_date_27, 'MM/DD/YYYY') comp_date FROM gnfo_report_asr WHERE event_25='INSC') insc
	ON insc.order_no_10=g1.order_no_10 and insc.r = 1
LEFT JOIN -- if you can get away with a simple JOIN, change this (I put it as LEFT JOIN just in case)
	(SELECT rownum r, order_no_10, TO_CHAR(due_date_26, 'MM/DD/YYYY') due_date, TO_CHAR(comp_date_27, 'MM/DD/YYYY') comp_date, jep_code_28 jep_code FROM gnfo_report_asr WHERE event_25='HXDD') hxdd
	ON hxdd.order_no_10=g1.order_no_10 and hxdd.r = 1
LEFT JOIN -- if you can get away with a simple JOIN, change this (I put it as LEFT JOIN just in case)
	(SELECT rownum r, order_no_10, TO_CHAR(due_date_26, 'MM/DD/YYYY') due_date, TO_CHAR(comp_date_27, 'MM/DD/YYYY') comp_date, jep_code_28 jep_code FROM gnfo_report_asr WHERE event_25='LCDD') lcdd
	ON lcdd.order_no_10=g1.order_no_10 and lcdd.r = 1
LEFT JOIN -- if you can get away with a simple JOIN, change this (I put it as LEFT JOIN just in case)
	(SELECT rownum r, order_no_10, TO_CHAR(due_date_26, 'MM/DD/YYYY') due_date, TO_CHAR(comp_date_27, 'MM/DD/YYYY') comp_date, jep_code_28 jep_code FROM gnfo_report_asr WHERE event_25='LABL') labl
	ON labl.order_no_10=g1.order_no_10 and labl.r = 1
LEFT JOIN -- if you can get away with a simple JOIN, change this (I put it as LEFT JOIN just in case)
	(SELECT rownum r, order_no_10, TO_CHAR(due_date_26, 'MM/DD/YYYY') due_date, TO_CHAR(comp_date_27, 'MM/DD/YYYY') comp_date, jep_code_28 jep_code FROM gnfo_report_asr WHERE event_25='PLDD') pldd
	ON pldd.order_no_10=g1.order_no_10 and pldd.r = 1
LEFT JOIN -- if you can get away with a simple JOIN, change this (I put it as LEFT JOIN just in case)
	(SELECT rownum r, order_no_10, TO_CHAR(due_date_26, 'MM/DD/YYYY') due_date, TO_CHAR(comp_date_27, 'MM/DD/YYYY') comp_date, jep_code_28 jep_code FROM gnfo_report_asr WHERE event_25='CTD') ctd
	ON ctd.order_no_10=g1.order_no_10 and ctd.r = 1
                                              
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Select allOpen in new window

 

by: yuchingPosted on 2008-09-15 at 19:42:54ID: 22484452

Perhaps you can try this,
Group a single select query from table gnfo_report_asr and then only join

SELECT g1.state_5 state, g1.order_no_10 asr_no, g1.ccna_22 ccna,
    g1.provisioning_center_9 prov_center, g1.pon_12 pon,
    g1.related_order_13 rord, g1.version_11 ver,
    g1.product_14 product, g1.svc_type_sc_18 sc,
    DECODE (g1.activity_15, 'N', 'New', 'D', 'Disco', 'C', 'Change') activity,
    g1.st_16 st, g1.crdd_jep_32 crdd_jep, g1.ead_jep_33 ead_jep,
    (Case WHEN ead_jep_33 LIKE 'H37%'
           THEN DECODE (ead_jep_33,
                        'H37A', 'Internal AT&T Initiated (Pre-ASR)',
                        'H37B', 'Internal AT&T Initiated (Post-ASR)',
                        'H37C', 'Customer Initiated (Pre-ASR)',
                        'H37D', 'Customer Initiated (Post-ASR)',
                        'H37E', 'Provisioning',
                        'H37F', 'Provisioning',
                        'H37G', 'Provisioning',
                        'H37H', 'Provisioning',
                        'H37I', 'Cancelled (Pre-ASR)',
                        'H37J', 'Cancelled (Post-ASR)',
                        'H37K', 'Internal on EFMS Escal',
                        'H37M', 'Provisioning',
                        'H37P', 'Database Discrepancy',
                        'H37R', 'Internal on EFMS Escal',
                        'H37S', 'Customer Initiated (EFMS)',
                        'H37T', 'Escalations for FOC EAD or DLR (EFMS)',
                        'H37X', 'Provisioning',
                        'H37Z', 'Provisioning'
                       )
        WHEN crdd_jep_32 LIKE 'H37%'
           THEN DECODE (crdd_jep_32,
                        'H37A', 'Internal AT&T Initiated (Pre-ASR)',
                        'H37B', 'Internal AT&T Initiated (Post-ASR)',
                        'H37C', 'Customer Initiated (Pre-ASR)',
                        'H37D', 'Customer Initiated (Post-ASR)',
                        'H37E', 'Provisioning',
                        'H37F', 'Provisioning',
                        'H37G', 'Provisioning',
                        'H37H', 'Provisioning',
                        'H37I', 'Cancelled (Pre-ASR)',
                        'H37J', 'Cancelled (Post-ASR)',
                        'H37K', 'Internal on EFMS Escal',
                        'H37M', 'Provisioning',
                        'H37P', 'Database Discrepancy',
                        'H37R', 'Internal on EFMS Escal',
                        'H37S', 'Customer Initiated (EFMS)',
                        'H37T', 'Escalations for FOC EAD or DLR (EFMS)',
                        'H37X', 'Provisioning',
                        'H37Z', 'Provisioning'
                       )
        ELSE 'NEO Escalation'
     End) expedite_desc,
     TO_CHAR (g1.order_due_date_38, 'MM/DD/YYYY') dd_due,
     TO_CHAR (g1.order_create_date_24, 'MM/DD/YYYY') create_date,
     g1.dd_jep_34 dd_jep, g1.jmc_jep_35 jmc_jep, g1.city_4 city,
     g1.area_mgr_3 om, g1.region_1 region,
     xcdd_due, xcdd_comp, xcdd_jep, edd_due, edd_comp,
     insc_due, insc_comp, hxdd_due, hxdd_comp, hxdd_jep,
     lcdd_due, lcdd_comp, lcdd_jep, labl_due, labl_comp, labl_jep,
     pldd_due, pldd_comp, pldd_jep, ctd_due, ctd_comp, ctd_jep,
     TO_CHAR (g1.order_create_date_24, 'YYYY') YEAR
FROM gnfo_report_asr g1
Left Outer Join (
Select order_no_10,
     Max(Case When event_25 = 'XCDD' Then TO_CHAR (due_date_26,'MM/DD/YYYY') Else Null End) As xcdd_due,
     Max(Case When event_25 = 'XCDD' Then TO_CHAR (comp_date_27,'MM/DD/YYYY') Else Null End) As xcdd_comp,
     Max(Case When event_25 = 'XCDD' Then jep_code_28 Else Null End) As xcdd_jep,
     Max(Case When event_25 = 'EDD' Then TO_CHAR (due_date_26,'MM/DD/YYYY') Else Null End) As edd_due,
     Max(Case When event_25 = 'EDD' Then TO_CHAR (comp_date_27,'MM/DD/YYYY') Else Null End) As edd_comp,
     Max(Case When event_25 = 'INSC' Then TO_CHAR (due_date_26,'MM/DD/YYYY') Else Null End) As insc_due,
     Max(Case When event_25 = 'INSC' Then TO_CHAR (comp_date_27,'MM/DD/YYYY') Else Null End) As insc_comp,
     Max(Case When event_25 = 'HXDD' Then TO_CHAR (due_date_26,'MM/DD/YYYY') Else Null End) As hxdd_due,  
     Max(Case When event_25 = 'HXDD' Then TO_CHAR (comp_date_27,'MM/DD/YYYY') Else Null End) As hxdd_comp,  
     Max(Case When event_25 = 'HXDD' Then jep_code_28 Else Null End) As hxdd_jep,      
     Max(Case When event_25 = 'LCDD' Then TO_CHAR (due_date_26,'MM/DD/YYYY') Else Null End) As lcdd_due,      
     Max(Case When event_25 = 'LCDD' Then TO_CHAR (comp_date_27,'MM/DD/YYYY') Else Null End) As lcdd_comp,      
     Max(Case When event_25 = 'LCDD' Then jep_code_28 Else Null End) As lcdd_jep,      
     Max(Case When event_25 = 'LABL' Then TO_CHAR (due_date_26,'MM/DD/YYYY') Else Null End) As labl_due,        
     Max(Case When event_25 = 'LABL' Then TO_CHAR (comp_date_27,'MM/DD/YYYY') Else Null End) As labl_comp,        
     Max(Case When event_25 = 'LABL' Then jep_code_28 Else Null End) As labl_jep,        
     Max(Case When event_25 = 'PLDD' Then TO_CHAR (due_date_26,'MM/DD/YYYY') Else Null End) As pldd_due,        
     Max(Case When event_25 = 'PLDD' Then TO_CHAR (comp_date_27,'MM/DD/YYYY') Else Null End) As pldd_comp,            
     Max(Case When event_25 = 'PLDD' Then jep_code_28 Else Null End) As pldd_jep,            
     Max(Case When event_25 = 'CTD' Then TO_CHAR (due_date_26,'MM/DD/YYYY') Else Null End) As ctd_due,        
     Max(Case When event_25 = 'CTD' Then TO_CHAR (comp_date_27,'MM/DD/YYYY') Else Null End) As ctd_comp,            
     Max(Case When event_25 = 'CTD' Then jep_code_28 Else Null End) As ctd_jep
From gnfo_report_asr
Group By order_no_10
) a On a.order_no_10 = g1.order_no_10
             
               

 

by: Sharath_123Posted on 2008-11-04 at 00:37:08ID: 22874376

>> if i remove the distinct ......it is running in seconds....
If this is the case, save the result of your query in to a temp table and then apply DISTINCT.
SELECT DISTINCT col1,col2,...
  FROM TempTable
check whether its working.

20120131-EE-VQP-002

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