Scenario
Let`s create a scenario where you are working on data validation
and data analysis and got the requirement in which you need
to find the Percentage of Null values in every column for all the tables in SQL
Server Database. This can be really helpful in analysis to know how
much data you are really getting or you are getting no values (Null) and plan
the storage. Also depending upon the analysis we can find some records those
should not be Null but you have receive Null for those Columns, so data
corrections can be next step.