What is the purpose of cluster analysis in data warehousing?
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Suppose we have some 10,000 odd records in source system and when load them into target.how do we ensure that all 10,000 records that are loaded to target doesnt contain any garbage values?
What is a real-time data warehouse?
I HAVE A FLAT FILE DO THE NULL CHEK AND PRIMARI KEY CHEK AND DATE VALIDITAION LOAD TO TARGET TABLE
What is data analysis?
How are the dimension tables designed?
What are the differences between star and snowflake schema?
Explain what are the different types of data warehousing?
Are facts same as metrics and dimensions same as measures? If not , please tell the difference?
What is META DATA information in Data warehousing projects?
Explain what does level of granularity of a fact table signify?
Suppose we want to display zero when null values coming to report how can we do that?
Compare aggregates and data marts