Add few record(s) to a Hive table or a HDFS file on a daily basis

[Raj Hadoop]

Hi,

My requirement is a typical Datawarehouse and ETL requirement. I need to 
accomplish

1) Daily Insert transaction records to a Hive table or a HDFS file. This table 
or file is not a big table ( approximately 10 records per day). I don't want to 
Partition the table / file.


I am reading a few articles on this. It was being mentioned that we need to 
load to a staging table in Hive. And then insert like the below :

insertoverwrite tablefinaltable select*fromstaging;


I am not getting this logic. How should I populate the staging table daily.

Thanks,
Raj