Date warehousing training in Chennai:
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As per William Inman data warehousing characteristics
- Subject Oriented
- Time Variant
Data warehouses are mainly used for our analyzing. Normally it is used for Top N Analysis of our company data. Say like who is the Best customer for last 5 year?. This characteristic shows the subject matter.
Want to introduce new trend in your product then need to analyze large amount of data. This type totally helps us to introduce new tricks in our business.
Once data’s enter into the warehouse, then it should not be changed. Mainly data warehousing concepts use to analyze what has occurred.
Integrated is almost equal to subject oriented characteristics. Put data in consistent format which we got from different sources. Need to trouble shoot the naming conflicts in this process.