What is Operational Data Store?
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what is query optimizer? what are different types of optimizer s supported by oracle ?
Explain what are the different methods of loading dimension tables?
What is static and local variable?
Explain grouped cross tab?
How to pivot row data using informatica?
What is the difference between mapping parameter & mapping variable in data warehousing?
Explain what is the difference between datawarehouse and bi?
What are cluster analysis in data warehousing?
What is bi?
What is the difference between star and snowflake schemas?
How many ways we test the universe & Report?
What is the main difference between schema in rdbms and schemas in datawarehouse?