Explain what are snapshots? What are materialized views & where do we use them? What is a materialized view log?
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Why joiner transformation does not allow the aggregator transformation and expression transformation to join
What are CUBES?
Explain can report net connect multiple datasource at a time in report creation time?
4.Explain Snowflkeschema ?
6 Answers EDS, HCL, IBM, iFlex, TCS,
What is an OLAP (On-line Analytical processing) system?
How can we run the graph?
What is the data type of the surrogate key?
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.
in general which algorithms for used?
Explain degenerate dimension table?
Explain is fact table?
How to reduce warnings?