How to create a Time Dimension

Hi
This is regarding a new topic which i could not find the answer in this forum.
Actually i want to create a time dimension to populate my source data which is in date/time format.
can anyone please reply back reagrding how to create a time dimension in ODI???
regards
Gourisankar

Hi Gourisankar,
I am not aware of time dimension. But when i searched in metalink i got the below note. I am not sure whether it will help you or not but still a small contribution. :)
The note as follows,
To create new time dimensions, run the following SQL instructions :
* Example to generate a calendar between 1999-01-01 and 2007-12-31 one row per day
SELECT to_date('1999-01-01','YYYY-MM-DD')+rownum
FROM DUAL
CONNECT BY
ROWNUM<=to_date('2007-12-31','YYYY-MM-DD')-to_date('1999-01-01','YYYY- MM-DD');
* Example for generating a calendar random number
SELECT DBMS_RANDOM.VALUE
FROM DUAL
CONNECT BY ROWNUM<=1000000;
May be you can create a VIEW out of this query ,reverse it and use that as a source in your interface.
Try this and let me know.
Thanks,
G
Edited by: Gurusank on Dec 22, 2008 4:19 PM

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Well, since I'm the only one obsessed with time dimensions I guess, here is my ugly workaround:
1. I create a base time dimension in OWB which I named 'ATLAS_TIME_DIM'
2. I run the OMB script below which clones the dimension and table and renames the columns and attributes with a user supplied suffix. The end result is I get a full copy of the time dimension metadata with uniquely named columns.
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gets stdin newDim
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gets stdin dimPrefix
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OMBCC 'ATLAS_DW'
OMBCC 'ATLAS_DW'
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# Set the business name
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OMBALTER DIMENSION '$newDim' \
DELETE BINDING
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OMBALTER DIMENSION '$newDim' \
IMPLEMENTED BY SYSTEM STAR
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set levelList [OMBRETRIEVE DIMENSION '$newDim' GET LEVELS]
foreach levelName $levelList {
set levelAttrList [OMBRETRIEVE DIMENSION '$newDim' \
LEVEL '$levelName' GET LEVEL_ATTRIBUTES]
foreach levelAttr $levelAttrList {
OMBALTER DIMENSION '$newDim' MODIFY \
LEVEL_ATTRIBUTE '$levelAttr' OF LEVEL '$levelName' \
SET PROPERTIES (BUSINESS_NAME) VALUES ('$dimPrefix\_$levelAttr')
OMBALTER DIMENSION '$newDim' MODIFY \
LEVEL_ATTRIBUTE '$levelAttr' OF LEVEL '$levelName' \
RENAME TO '$dimPrefix\_$levelAttr'
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set columnList [OMBRETRIEVE TABLE '$newDim' GET COLUMNS]
foreach colName $columnList {
if { $colName == "DIMENSION_KEY" } {
puts "$colName"
} else {
OMBALTER TABLE '$newDim' \
MODIFY COLUMN '$colName' SET PROPERTIES (BUSINESS_NAME) VALUES ('$dimPrefix\_$colName')
OMBALTER TABLE '$newDim' \
MODIFY COLUMN '$colName' RENAME TO '$dimPrefix\_$colName'
puts "$dimPrefix\_$colName"
OMBSAVE
OMBDISCONNECT
Message was edited by:
mike_fls

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How to create a Time Dimension

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