Why facts table is useful in representing the data?
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i have scheduled a report in a job in the cognos8.3 which would send the reports to the respective user ,now the repot ran and is sent to the respective user but it contains some unwanted data. So based on the senario can any one tell me that can we recall back the report ??????
What are snapshots? What are materialized views & where do we use them?
What is a source qualifier?
What is the differences between star and snowflake schemas?
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What a static and local variable?
Suppose date is 05sep2005; I want the output like 05sep2005:00:00:00 ; how it will come?
What are the methodologies of data warehousing?
Which kind of index is preferred in DWH?
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what are the all possible features supported modify stage?