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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [CLOSED] SCD flow in DMC taking extremely long

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[CLOSED] SCD flow in DMC taking extremely long
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Member
posted
Hi all,
I have a performance issue with a Slowly Changing Dimension flow taking an unacceptable amount of time to load; and i'm looking for some feedback/advice.

It is a relatively simple flow, with one source file with only 63000 records.

The target table has 1.3 million rows.

I have 4 fields designated as logical key fields (Company, Program, Prefix Code, and Unit#).

Does the flow process have to read every record in the target table? every record for each logical? (1.3 mill X 4)?

Would it be beneficial to create one Unique ID in the source to use as "1" logical key field to the target (create the same Unique ID in Target)?

Does anyone have any similar experiences, troubleshooting, etc..?

thank you,
James Golden

This message has been edited. Last edited by: Kerry,


WebFocus Developer Studio v. 7610
MySQL/Linux
All different outputs including map technology and using the DMC for our ETL process as well
 
Posts: 13 | Registered: April 28, 2009Report This Post
Virtuoso
posted Hide Post
You might get a better answer if you post this to the iWay Forum where the ETL users mingle. I have a little experience with our ETL processes but not enough to answer your question. Sorry.


Regards,

Darin



In FOCUS since 1991
WF Server: 7.7.04 on Linux and Z/OS, ReportCaster, Self-Service, MRE, Java, Flex
Data: DB2/UDB, Adabas, SQL Server Output: HTML,PDF,EXL2K/07, PS, AHTML, Flex
WF Client: 77 on Linux w/Tomcat
 
Posts: 2298 | Location: Salt Lake City, Utah | Registered: February 02, 2007Report This Post
Member
posted Hide Post
thanks for the feedback


WebFocus Developer Studio v. 7610
MySQL/Linux
All different outputs including map technology and using the DMC for our ETL process as well
 
Posts: 13 | Registered: April 28, 2009Report This Post
<JG>
posted
quote:
key

Darin is quite correct, Wrong forum, but INDEX for the purpose is the answer.
 
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