ODK AGGREGATE INSTALLATION help

Can anyone please tell me what is the use of this generated create_db_and_user.sql
and ODKAggregate.war file generated at the end of installation. what should be done with it to proceed further ?
How will the data submitted in the form in ODK Collect app be stored in database?
Should tables be created ??

Closing in favor of ODK AGGREGATE INSTALL. Please don't creating multiple topics asking the same question.