Can any one explain the hierarchies level data warehousing.
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What is surrogate key? Where we use it? Explain with examples.
what are the other factors of the database on which the loading performance depend?
suppose data are coming from different locations and those data will not change . is there any need to use surrogate key ?
Explain what are necessary tasks to install reportnet software?
What are Data Marts?
How can we load the time dimension?
When should you use a STAR and when a SNOW-FLAKE schema?
List down some of the real time data-warehousing tools?
What are the stages that are required in data warehousing?
What are the steps involved in designing a fact table?
What is the difference between data warehouse and operational systems?
What are data modeling and data mining? Where it will be used?