What is data cleaning? How can we do that?


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More Data Warehouse General Interview Questions

What is the difference between narmal load and bulk load?

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Explain what are non-additive facts in detail?

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Explain is olap databases are called decision support system true/false?

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What are the advantages and disadvantages of reporting directly against the database?

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What is a real-time data warehouse? How is it different from near to real-time data warehouse?

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what is the difference between etl tool and olap tools

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What is a fact table?

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In general, how many Fact & Dimension tables are present in a Banking Data warehouse project ?

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What is the difference between snowflake and star schema? What are situations where snowflake schema is better than star schema when the opposite is true?

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Explain the definition of normalized and denormalized view and what are the differences between them?

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Explain what are the steps to build the data warehouse?

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What are different stages of ?Data mining??

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