What is the difference between view materialized view and view?
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What are the steps of implementing data warehousing?
Code the tables statement to produce a multi-level frequency?
Explain difference between snow flake and star schema.
How can we do data cleaning?
How much data hold in one universe.
If two relational tables are connected to sq trans, what are the possible errors it will be thrown?
what role views play in dimensional modeling?
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 Aggregate tables?
How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.
Where do we use semi and non additive facts?
How are models actually derived?