When to use Hadoop, HBase, Hive and Pig?

Question

What are the benefits of using either Hadoop or HBase or Hive ?

From my understanding, HBase avoi

Answer 1

Consider that you work with RDBMS and have to select what to use - full table scans, or index access - but only one of them.
If you select full table scan - use hive. If index access - HBase.