It is good to know how big is your data. Especially if you have to pay for the storage. See below 3 ways on how to keep track of your data size.
What are storage classes? And does Google Cloud Storage implement it?
SQL is here for a long time. But how is it holding up? Is worth to invest time in learning SQL?
BigQuery BI Engine - it promises a lot, but what's the actual benefit?
Lets you compare display size
Calculate your loan amortization schedule