I have a fact table that has the file sizes of all the files in the organisation and it has 10 billion rows. Now we have a requirement of see the trend of these files growth over a period of time.
If i use snapshot date and use this to link a dimension with snapshot ( monthly or yearly ) that will solve my problem to see trend but that means no of rows in fact will be multiplied by snapshots that will lead to performance issues and not feasible.Is there any alternative solution to solve this in terms of design and reporting, please help
File Fact : 10 Billion rows
ID | FileName | Size(GB) | Snapshot Date