Converting multiple correlated self-referencing subqueries to Analytic Func
I have a peoplesoft query that I am trying to improve the performance on. Using DBMS_XPLAN with gather_plan_statistics is showing me that a large portion of the time is being spent on the various correlated self-referencing MAX/MIN subqueries.
| 24 | SORT AGGREGATE | | 9461K| 1 | 21 | | | | | | 9461K|00:14:31.67 | 139M| 99172 | | | |
|* 25 | TABLE ACCESS BY INDEX ROWID | PS_BAS_PARTIC | 9461K| 1 | 21 | 12 (0)| 00:00:01 | | | | 89M|00:19:10.64 | 139M| 99172 | | | |
|* 26 | INDEX RANGE SCAN | PSBBAS_PARTIC | 9461K| 9 | | 3 (0)| 00:00:01 | | | | 131M|00:03:16.21 | 19M| 16193 | | | |I think I understand the basic mechanism of converting a simple case to use a MAX/MIN PARTITION OVER analytic. I.E.
select emplid, effdt, .....
from ps_pay_check pchk1
where pchk1.effdt = (select max(effdt)
from ps_pay_check pchk2
where pchk2.emplid = pchk1.emplid);converts to
select emplid, effdt, .....
from
(select emplid,
effdt,
max(effdt) over (partition by emplid) max_effdt
from ps_pay_check pchk1)
where effdt = max_effdt;However, when you have multiple subqueries that have multiple predicates (some referencing the parent some against binds), I get a little confused.
Here is the main example I am working with (fairly complex/ugly query).
SELECT /*+ gather_plan_statistics */
A.EMPLID, A.EMPL_RCD, A.REG_REGION, A.EMPL_STATUS, A.LOCATION,
A.ACTION_REASON, A.EFFDT, A.REG_TEMP, A.PAYGROUP, A.FULL_PART_TIME, A.JOBCODE, A.DEPTID,
A.UNION_CD, A.FLSA_STATUS, A.STD_HOURS, A.ACTION, A.SUPERVISOR_ID, A.SETID_JOBCODE,
B.MED_ELIG, B.DEP_LIFE_ELIG,B.SUP_LIFE_ELIG
FROM
PS_JOB A,
(SELECT EMPLID,
max(( CASE WHEN PLAN_TYPE IN ( '10','11','14') THEN 'Y' ELSE 'N' END)) med_elig,
max(( CASE WHEN PLAN_TYPE IN ( '2X','2Z') THEN 'Y' ELSE 'N' END)) dep_life_elig,
max(( CASE WHEN PLAN_TYPE IN ( '2Y') THEN 'Y' ELSE 'N' END)) sup_life_elig
FROM
(SELECT
B.EMPLID, B.PLAN_TYPE
FROM PS_BAS_PARTIC A,
PS_BAS_PARTIC_PLAN B,
PS_BAS_PARTIC_OPTN C
WHERE A.EVENT_STATUS = 'C'
AND A.BAS_PROCESS_STATUS = 'FE'
AND A.BAS_EVT_DISCONNECT = 'N'
AND A.EVENT_DT = (SELECT MAX (A_ED.EVENT_DT)
FROM PS_BAS_PARTIC A_ED
WHERE A.EMPLID = A_ED.EMPLID
AND A_ED.EVENT_DT <= :1
AND A_ED.BAS_PROCESS_STATUS = A.BAS_PROCESS_STATUS
AND A_ED.BAS_EVT_DISCONNECT = A.BAS_EVT_DISCONNECT)
AND A.SCHED_ID = B.SCHED_ID
AND A.EMPLID = B.EMPLID
AND A.BENEFIT_RCD_NBR = B.BENEFIT_RCD_NBR
AND A.EVENT_ID = B.EVENT_ID
AND B.PLAN_TYPE IN ('10', '11', '14', '2X', '2Z', '2Y')
AND B.EMPLID = C.EMPLID
AND B.BENEFIT_RCD_NBR = C.BENEFIT_RCD_NBR
AND B.EVENT_ID = C.EVENT_ID
AND B.PLAN_TYPE = C.PLAN_TYPE
AND B.SCHED_ID = C.SCHED_ID
AND A.EVENT_DT = (SELECT MAX (D.EVENT_DT)
FROM PS_BAS_PARTIC D
WHERE A.EMPLID = D.EMPLID
AND D.EVENT_STATUS = A.EVENT_STATUS
AND D.EVENT_DT <= :1
AND D.BAS_PROCESS_STATUS = A.BAS_PROCESS_STATUS
AND D.BAS_EVT_DISCONNECT = A.BAS_EVT_DISCONNECT)
AND C.BENEFIT_PLAN <> ' '
AND A.STATUS_DT = (SELECT MAX (E.STATUS_DT)
FROM PS_BAS_PARTIC E
WHERE E.EVENT_STATUS = A.EVENT_STATUS
AND E.EMPLID = A.EMPLID
AND E.BAS_PROCESS_STATUS = A.BAS_PROCESS_STATUS
AND E.BAS_EVT_DISCONNECT = A.BAS_EVT_DISCONNECT
AND E.EVENT_DT = A.EVENT_DT)
AND A.EVENT_PRIORITY = (SELECT MIN (F.EVENT_PRIORITY)
FROM PS_BAS_PARTIC F
WHERE F.EMPLID = A.EMPLID
AND F.EVENT_STATUS = A.EVENT_STATUS
AND F.BAS_PROCESS_STATUS = A.BAS_PROCESS_STATUS
AND F.BAS_EVT_DISCONNECT = A.BAS_EVT_DISCONNECT
AND F.EVENT_DT = A.EVENT_DT
AND F.STATUS_DT = A.STATUS_DT)
GROUP BY EMPLID) B
WHERE A.EMPLID = B. EMPLID
AND A.PER_ORG = 'EMP'
AND A.EFFDT = (SELECT MAX (A_SUB.EFFDT)
FROM PS_JOB A_SUB
WHERE A.EMPLID = A_SUB.EMPLID
AND A.EMPL_RCD = A_SUB.EMPL_RCD
AND A_SUB.EFFDT <= :3)
AND A.EFFSEQ = (SELECT MAX (A_SUB2.EFFSEQ)
FROM PS_JOB A_SUB2
WHERE A.EMPLID = A_SUB2.EMPLID
AND A.EMPL_RCD = A_SUB2.EMPL_RCD
AND A.EFFDT = A_SUB2.EFFDT)
ORDER BY A.EMPLID;As you can see this has a total of 6 different MAX/MIN subqueries. Can all of them be turned into analytic equivalents, and how are the different predicates of the subqueries handled?
Any help appreciated!
Thanks
Wayne
The full query takes roughly 25 min. With 14.5 min taken by the first correlated subquery, MAX (A_ED.EVENT_DT).
Here's the full plan:
| Id | Operation | Name | Starts | E-Rows |E-Bytes| Cost (%CPU)| E-Time | TQ |IN-OUT| PQ Distrib | A-Rows | A-Time | Buffers | Reads | OMem | 1Mem | Used-Mem |
| 0 | SELECT STATEMENT | | 1 | | | 220M(100)| | | | | 1 |00:24:59.66 | 181M| 398K| | | |
|* 1 | FILTER | | 1 | | | | | | | | 1 |00:24:59.66 | 181M| 398K| | | |
| 2 | NESTED LOOPS | | 1 | 6 | 636 | 220M (1)|733:42:27 | | | | 1 |00:24:59.65 | 181M| 398K| | | |
| 3 | VIEW | | 1 | 1 | 16 | 220M (1)|733:42:27 | | | | 1 |00:24:59.64 | 181M| 398K| | | |
| 4 | SORT AGGREGATE | | 1 | 1 | 102 | | | | | | 1 |00:24:59.64 | 181M| 398K| | | |
|* 5 | FILTER | | 1 | | | | | | | | 23M|00:23:02.81 | 181M| 398K| | | |
| 6 | PX COORDINATOR | | 1 | | | | | | | | 76M|00:06:42.64 | 300K| 299K| | | |
| 7 | PX SEND QC (RANDOM) | :TQ10004 | 0 | 18M| 1792M| 199K (2)| 00:39:54 | Q1,04 | P->S | QC (RAND) | 0 |00:00:00.01 | 0 | 0 | | | |
|* 8 | HASH JOIN BUFFERED | | 0 | 18M| 1792M| 199K (2)| 00:39:54 | Q1,04 | PCWP | | 0 |00:00:00.01 | 0 | 0 | 325M| 16M| |
| 9 | BUFFER SORT | | 0 | | | | | Q1,04 | PCWC | | 0 |00:00:00.01 | 0 | 0 | 73728 | 73728 | |
| 10 | PX RECEIVE | | 0 | 3405K| 152M| 19585 (2)| 00:03:56 | Q1,04 | PCWP | | 0 |00:00:00.01 | 0 | 0 | | | |
| 11 | PX SEND HASH | :TQ10001 | 0 | 3405K| 152M| 19585 (2)| 00:03:56 | | S->P | HASH | 0 |00:00:00.01 | 0 | 0 | | | |
|* 12 | TABLE ACCESS FULL | PS_BAS_PARTIC | 1 | 3405K| 152M| 19585 (2)| 00:03:56 | | | | 3302K|00:00:10.18 | 87732 | 87726 | | | |
| 13 | PX RECEIVE | | 0 | 24M| 1289M| 179K (2)| 00:35:59 | Q1,04 | PCWP | | 0 |00:00:00.01 | 0 | 0 | | | |
| 14 | PX SEND HASH | :TQ10003 | 0 | 24M| 1289M| 179K (2)| 00:35:59 | Q1,03 | P->P | HASH | 0 |00:00:00.01 | 0 | 0 | | | |
|* 15 | HASH JOIN BUFFERED | | 0 | 24M| 1289M| 179K (2)| 00:35:59 | Q1,03 | PCWP | | 0 |00:00:00.01 | 0 | 0 | 730M| 18M| |
| 16 | BUFFER SORT | | 0 | | | | | Q1,03 | PCWC | | 0 |00:00:00.01 | 0 | 0 | 73728 | 73728 | |
| 17 | PX RECEIVE | | 0 | 12M| 279M| 47310 (3)| 00:09:28 | Q1,03 | PCWP | | 0 |00:00:00.01 | 0 | 0 | | | |
| 18 | PX SEND HASH | :TQ10000 | 0 | 12M| 279M| 47310 (3)| 00:09:28 | | S->P | HASH | 0 |00:00:00.01 | 0 | 0 | | | |
|* 19 | INDEX FAST FULL SCAN| PS_BAS_PARTIC_PLAN | 1 | 12M| 279M| 47310 (3)| 00:09:28 | | | | 12M|00:00:57.03 | 213K| 211K| | | |
| 20 | PX RECEIVE | | 0 | 84M| 2499M| 132K (2)| 00:26:30 | Q1,03 | PCWP | | 0 |00:00:00.01 | 0 | 0 | | | |
| 21 | PX SEND HASH | :TQ10002 | 0 | 84M| 2499M| 132K (2)| 00:26:30 | Q1,02 | P->P | HASH | 0 |00:00:00.01 | 0 | 0 | | | |
| 22 | PX BLOCK ITERATOR | | 0 | 84M| 2499M| 132K (2)| 00:26:30 | Q1,02 | PCWC | | 0 |00:00:00.01 | 0 | 0 | | | |
|* 23 | TABLE ACCESS FULL | PS_BAS_PARTIC_OPTN | 0 | 84M| 2499M| 132K (2)| 00:26:30 | Q1,02 | PCWP | | 0 |00:00:00.01 | 0 | 0 | | | |
| 24 | SORT AGGREGATE | | 9461K| 1 | 21 | | | | | | 9461K|00:14:31.67 | 139M| 99172 | | | |
|* 25 | TABLE ACCESS BY INDEX ROWID | PS_BAS_PARTIC | 9461K| 1 | 21 | 12 (0)| 00:00:01 | | | | 89M|00:19:10.64 | 139M| 99172 | | | |
|* 26 | INDEX RANGE SCAN | PSBBAS_PARTIC | 9461K| 9 | | 3 (0)| 00:00:01 | | | | 131M|00:03:16.21 | 19M| 16193 | | | |
| 27 | SORT AGGREGATE | | 1093K| 1 | 23 | | | | | | 1093K|00:00:47.55 | 13M| 0 | | | |
|* 28 | TABLE ACCESS BY INDEX ROWID | PS_BAS_PARTIC | 1093K| 1 | 23 | 12 (0)| 00:00:01 | | | | 9182K|00:00:53.32 | 13M| 0 | | | |
|* 29 | INDEX RANGE SCAN | PSBBAS_PARTIC | 1093K| 9 | | 3 (0)| 00:00:01 | | | | 12M|00:00:13.00 | 2230K| 0 | | | |
| 30 | SORT AGGREGATE | | 1093K| 1 | 31 | | | | | | 1093K|00:00:43.48 | 13M| 0 | | | |
|* 31 | TABLE ACCESS BY INDEX ROWID | PS_BAS_PARTIC | 1093K| 1 | 31 | 12 (0)| 00:00:01 | | | | 1122K|00:00:41.05 | 13M| 0 | | | |
|* 32 | INDEX RANGE SCAN | PSBBAS_PARTIC | 1093K| 9 | | 3 (0)| 00:00:01 | | | | 12M|00:00:12.98 | 2229K| 0 | | | |
| 33 | SORT AGGREGATE | | 1077K| 1 | 35 | | | | | | 1077K|00:00:42.82 | 13M| 0 | | | |
|* 34 | TABLE ACCESS BY INDEX ROWID | PS_BAS_PARTIC | 1077K| 1 | 35 | 12 (0)| 00:00:01 | | | | 1079K|00:00:40.67 | 13M| 0 | | | |
|* 35 | INDEX RANGE SCAN | PSBBAS_PARTIC | 1077K| 9 | | 3 (0)| 00:00:01 | | | | 12M|00:00:12.62 | 2197K| 0 | | | |
| 36 | TABLE ACCESS BY INDEX ROWID | PS_JOB | 1 | 6 | 540 | 8 (0)| 00:00:01 | | | | 1 |00:00:00.02 | 4 | 4 | | | |
|* 37 | INDEX RANGE SCAN | PS0JOB | 1 | 6 | | 2 (0)| 00:00:01 | | | | 1 |00:00:00.01 | 3 | 3 | | | |
| 38 | SORT AGGREGATE | | 1 | 1 | 19 | | | | | | 1 |00:00:00.01 | 3 | 1 | | | |
|* 39 | INDEX RANGE SCAN | PSAJOB | 1 | 1 | 19 | 3 (0)| 00:00:01 | | | | 1 |00:00:00.01 | 3 | 1 | | | |
| 40 | SORT AGGREGATE | | 1 | 1 | 22 | | | | | | 1 |00:00:00.01 | 3 | 0 | | | |
|* 41 | INDEX RANGE SCAN | PSAJOB | 1 | 1 | 22 | 3 (0)| 00:00:01 | | | | 1 |00:00:00.01 | 3 | 0 | | | |
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Yes, I was also puzzled by the 2 almost identical EVENT_DT subqueries. The second one, with EVENT_STATUS, only takes about 1 min of the execution time (since the EVENT_STATUS filters the records processed by the subquery by an order of magnitude). I haven't had a chance to ask the developers about it yet, but it does make a difference in the output. Though, even if I were to take out the second one, the performance and question of the proper format of the Analytic functions would remain.
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Greetings.
I'm new, hope it's the right place to post and get some insight.
Does anyone know that Adober Acrobat X Standard support WordPerfect 9 PDF conversion? We would like to convert multiple WP 9 documents into 1 PDF file. However, I did not see such option available from the selection list... that is when I try to convert/select multiple documents, the list does not give me the WordPerfect as the source file type... Any suggestion is welcome.
Thanks.Corel's WP has not been and is not supported by Acrobat.
Back in the day Corel used an in-house routine to create PDF.
A few years ago a news release discussed Corel using a Nuance routine.
Current news release speaks to Corel's PDF Fusion.
So, yes PDF can created out of WP; just not with Acrobat.
To learn what PDF creation or post-processing features Corel has or does not have you'll want to visit Corel's web space.
If you want amped up PDF manipulation / post-processing you'll want to consider Acrobat Pro.
Be well... -
How do you create a macro for Acrobat Convert Multiple Reports action in Microsoft Access
I have several reports in microsoft access and I've been able to combine them into a single PDF file using the Acrobat Convert Multiple Reports feature. Is there a way to create a macro for this action? I would like to create a time event for this procedure.
Any help I get on this is greatly appreciated.
ThanksCTPetEng,
Since this question is not related to CreatePDF, but rather to Acrobat, I'm moving your question to the Acrobat forum.
Dave -
Converting multiple msft files into one pdf
HELP - i am using adobe acrobat 9 pro for macs (Mac OS X 10.6.3). when we had a pc, we were able to convert multiple files (microsoft office) to a single pdf at once without first converting them all to pdf. when I attempt this using the same technique, the images for all documents other than pdf files are greyed out and it seems that word/office documents are not a supported format for the conversion of multiple files (not listed in drop down menu) into one pdf.
I would greatly appreciate help with this. we are business users who are new to macs. we need to do a lot of this and are getting so frustrated. Thanks in advance!Hi mephisto11757,
You can convert the following file types to PDF with the Adobe CreatePDF service:
Adobe Creative Suite® file formats Examples include: .psd, .ai, .indd
Microsoft Word (2000, XP, 2003, 2007, 2010, & 2011) .doc, .docx
Microsoft Excel (2000, XP, 2003, 2007, 2010, & 2011) .xls, .xlsx
Microsoft PowerPoint (2000, XP, 2003, 2007, 2010, & 2011) .ppt, .pptx
Microsoft Publisher (2000, XP, 2003, 2007, 2010, & 2011) .pub
Text Files .txt
Rich Text Format .rtf
Adobe PostScript .ps
OpenOffice Format .odt
Star Office .sxw, .sxi, .sxc, .sxd, .stw
Corel WordPerfect .wpd
Image file formats .gif, .png, .jpg, .bmp, .tiff
Regards,
Florence
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