What is SCDs or Slowly Changing Dimensions? Slowly changing dimensions is a concept related to data warehousing. They track the…
While executing Hive queries you might have observed that the MapReduce task won’t start when you do perform a Select…
Hive has so many clubbing operations like Order By, Sort By etc. Each clause it’s own uses, advantages and disadvantages.…
Assume that we have a table as below: Column_name 1 -2 3 -4 5 Need to write a query to…