SYSTEM LANDSCAPE - DEV and PROD - refresh

Hi All,
We have a situation like this.
1. Our BW Q&A is a copy of PROD
2. Our BW DEV is not either a copy of Q&A or PROD.
3. We have issue with a particular process chain in PROD and we need to correct (and follow the lanscape..that is want to do the correction in DEV and the transport to QA and then to PROD)
4. Since this particular process chain is not existing in the DEV environment, our Basis team is advising us to check the difference in DEV and PROD for as this process chain concern and then want to refresh it to DEV system so that we can carry out the change/modification.
We don't know really what exactly we need to find the differences between DEV and PROD for this PC and then to inform to Basis team...
Is it correct that since the particular process chain associated with various queries,data targets,update/transfer structures...etc will be over writen / copied / refreshed in DEV system from PROD?
Please advise..Please help..

Hi George, SAT, BWer,
Thanks for your messages.
George : Answers to your question:
1. Our Basis team want to copy all the configuration (related to the particular process chain only)and not Data's.
2. How to pack the process chain in a portable file and extract this file. then import it into DEV..and what is the way not to get error when doing so (knowing that fact that obejects will be different..) I don't know..whether to copy the objects are or not..
3.I agree with you.. Even we are ready to work with DEV to PROD..
SAT: Answers to your questions:
1. I do see some Process chains in the DEV and not related to this particular PC. Many development PC are there..and I don't know where the originally developed PC's ???!!
2. I am new to this Client..sorry..how this has been deleted...
BWer :Answers to your questions:
1. Yes..PC is Latest in the PROD.
2. We don't want to create the process chain all the way from scratch in the DEV. Yes..This is one of the process chain used in the metachain...Totally there are five chains in the PROD related to this..We need to modify only the second process chain..which we are trying to copy in the DEV and then do the changes...
Hope , you are clear about our requirement.
Please advise me what exactly we need to look into the DEV and PROD system so that required PC is copied alomg with (????) to DEV system..Please help.
Thank you very much in Advance..

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Rows Row Source Operation
1 TABLE ACCESS BY INDEX ROWID VAP_BANDVALUE
3 NESTED LOOPS
1 NESTED LOOPS
41 NESTED LOOPS
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1 TABLE ACCESS BY INDEX ROWID VAP_PACKAGE
1 INDEX UNIQUE SCAN SYS_C0032600 (object id 51356)
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41 INDEX RANGE SCAN IDX_BE1 (object id 53558)
41 TABLE ACCESS BY INDEX ROWID VAP_BAND
41 INDEX UNIQUE SCAN SYS_C0034599 (object id 53556)
1 INDEX UNIQUE SCAN SYS_C0032549 (object id 51335)
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1 TABLE ACCESS MODE: ANALYZED (BY INDEX ROWID) OF 'VAP_BANDVALUE' (TABLE)
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26000 NESTED LOOPS
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26000 TABLE ACCESS MODE: ANALYZED (BY INDEX ROWID) OF 'VAP_BANDELEMENT' (TABLE)
26000 INDEX MODE: ANALYZED (RANGE SCAN) OF 'IDX_BE2' (INDEX)
26000 TABLE ACCESS MODE: ANALYZED (BY INDEX ROWID) OF 'VAP_BAND' (TABLE)
26000 INDEX MODE: ANALYZED (UNIQUE SCAN) OF 'SYS_C0030648' (INDEX (UNIQUE))
26000 INDEX MODE: ANALYZED (UNIQUE SCAN) OF 'SYS_C0018674' (INDEX (UNIQUE))
26000 INDEX MODE: ANALYZED (RANGE SCAN) OF 'IDX_BV1' (INDEX).The row count varies greatly. But it shouldn't as the data is the same.
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From DEV you show the Row Source Operations for the query. The column named "Rows" signifies the actual number of rows processed with each step.
From PROD you show the Execution Plan for the query; that is, tkprof was executed with the EXPLAIN option which generates the execution plan as of the time when tkprof was run. The "Rows" column in the Explain Plan output comes from the PLAN_TABLE.CARDINALITY, which represents an estimate by the CBO for the number of rows [expected to be] processed with each step.
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2. Indexes being the same means their definitions are the same; again, physically they are not necessarily identical
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Now, by all means look at that query taking 1 second in PROD ... I have only addressed <quote>The row count varies greatly. But it shouldn't as the data is the same.</quote>

Query Execution time is different in DEV and PROD

Hi,
Query is as follows:
SELECT DISTINCT tds.*
FROM testdev.contract_trans npq, testdev.contract_trans_group tds
WHERE npq.contract_trans_group_id = tds.id
AND tds.contract_id <> :contractid
AND tds.tradingday_date BETWEEN :fromtradingday AND :totradingday
AND tds.category_id = :categoryid
AND tds.state_id = :entitystateid
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(SELECT *
FROM testdev.contract_trans npq1,
testdev.contract_trans_group tds1
WHERE npq1.contract_trans_group_id = tds1.id
AND tds1.contract_id = :contractid
AND (npq.network_point_id = npq1.network_point_id
OR (npq.network_point_id IS NULL
AND npq1.network_point_id IS NULL))
AND tds.tradingday_date = tds1.tradingday_date
AND tds.category_id = tds1.category_id
AND tds.state_id = tds1.state_id)
This query is taking 500ms of time to execute in DEV and when it is executing in Prod it is execuiting in 1.10min. I also analyze the table as well as use hint on this. But the time is not getting reduce in Prod. I compare the tables of dev and prod but data is on shink.
row execution plan for DEV :
call count cpu elapsed disk query current rows
Parse 1 0.00 0.01 0 0 0 0
Execute 1 1.62 1.57 0 0 0 0
Fetch 2 0.81 0.78 0 1208 0 364
total 4 2.43 2.37 0 1208 0 364
Misses in library cache during parse: 1
Optimizer mode: CHOOSE
Parsing user id: 5 (SYSTEM)
Rows Row Source Operation
364 HASH UNIQUE (cr=1208 pr=0 pw=0 time=783194 us)
545 FILTER (cr=1208 pr=0 pw=0 time=775342 us)
545 HASH JOIN (cr=1208 pr=0 pw=0 time=774670 us)
99432 TABLE ACCESS FULL CONTRACT_TRANS (cr=382 pr=0 pw=0 time=465 us)
18225 HASH JOIN (cr=826 pr=0 pw=0 time=359469 us)
1000 HASH JOIN (cr=445 pr=0 pw=0 time=108528 us)
46 TABLE ACCESS FULL CONTRACT_TRANS_GROUP (cr=223 pr=0 pw=0 time=48274 us)
675 TABLE ACCESS FULL CONTRACT_TRANS_GROUP (cr=222 pr=0 pw=0 time=51497 us)
99432 TABLE ACCESS FULL CONTRACT_TRANS (cr=381 pr=0 pw=0 time=182 us)
And row execution plan for PROD:
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 2 80.03 78.40 219 319722 0 364
total 4 80.03 78.41 219 319722 0 364
Misses in library cache during parse: 0
Optimizer mode: CHOOSE
Parsing user id: 5 (SYSTEM)
Rows Row Source Operation
364 HASH UNIQUE (cr=319722 pr=219 pw=0 time=78406184 us)
545 FILTER (cr=319722 pr=219 pw=0 time=78385884 us)
545 HASH JOIN (cr=319722 pr=219 pw=0 time=78384017 us)
675 TABLE ACCESS FULL CONTRACT_TRANS_GROUP (cr=222 pr=219 pw=0 time=328724 us)
2380118 NESTED LOOPS (cr=319500 pr=0 pw=0 time=71521450 us)
837 HASH JOIN (cr=603 pr=0 pw=0 time=315980 us)
46 TABLE ACCESS FULL CONTRACT_TRANS_GROUP (cr=222 pr=0 pw=0 time=48647 us)
99432 TABLE ACCESS FULL CONTRACT_TRANS (cr=381 pr=0 pw=0 time=100990 us)
2380118 TABLE ACCESS FULL CONTRACT_TRANS (cr=318897 pr=0 pw=0 time=70077111 us)
Can any body help me out why this is happening?
Regards,
Saptadip

Welcome to the forum.
Please edit your post and use the {noformat}{noformat} tag, so your examples will stay formatted and indented.
Put the tag before and after all text you want to stay formatted.
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The query on PROD is doing lots more of reads/processing much more rows then on DEV.
For example, take table CONTACT_TRANS:
- less than 100,000 rows on DEV
vs
more than 2,300,000 on PROD.
but data is on shink.What does that mean?

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I have 3 Systems in my Landscape.
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Can any body throw some light on this regarding any alternative way or can we download table information ?
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santosh

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SYSTEM LANDSCAPE - DEV and PROD - refresh

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