We have currently one running project which uses RDBMS database( with lots of tables and stored procedures for manipulating data). The current flow is like : the data access layer will call stored procedures, which will insert/delete/update or fetch data from RDBMS(please note that these stored procedures are not doing any bulk proccesses.). The current data structure contains lots of primary key, foreign key relation ship and have lots of updates to existing database tables.a I just want to know whether we can use HBase for our purpose? then how can we use Hadoop with HBase replacing RDBMS?