Why not INSERT INTO for appending the new data?

a)Load the new data into staging table

b)INSERT INTO final table.






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From: Raj Hadoop
Sent: ‎Monday‎, ‎10‎ ‎February‎ ‎2014 ‎08‎:‎15
To: user, User












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 :




insert overwrite table finaltable select * from staging;





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




Thanks,

Raj

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