Explain why are oltp database designs not generally a good idea for a data warehouse?
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What are the different types of join operations?
What is cubes?
What are the different types of data warehouses?
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 ??????
How can we load the time dimension?
What is a functional dependency f said to be minimal?
What is operational data source (ODS)?
Explain dimension table ?
Explain what are the various methods of getting incremental records or delta records from the source systems?
What is an OLAP (On-line Analytical processing) system?
Name at least three brands of Database Management Systems
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.