Explain er diagram?
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What is Grain & Granularity in Data Warehouse.
Where the applications and where
What is an OLTP (Online Transaction Processing) System?
Suppose we want to display zero when null values coming to report how can we do that?
What is an error log table in informatica occurs and how to maintain it in mapping?
Explain where do we use semi and non additive facts?
Code the tables statement for a single-level (most common) frequency?
What is a ETL/ How does Oracle support the ETL process?
what is Materialized Views?
What are the types of dimensional modeling?
What is multi-dimensional analysis?
What is data merging, data cleansing and sampling?