title: oracle binary data types
body: <p>is there a type or way how to store data in oracle in binary level.
  I'm interested both in operations for dml at table and pl/sql.</p>
  
  <p>Currently all binary elements are stored as varchar2(1000)='11111...0000.1111' however operations and data storage size is rather big, therefore need some solutions for optimization. If this data could be stored in binary format, it would require 1000/8 bytes
  (have >700mln records)</p>
  
  <p>Maybe a solution would be using some kind of java+oracle combination for these operations.</p>
  
  <p>Ideas and suggestions welcome.</p>