SAS DS2 --- Data Step 2

Main Features include
  Key Features : Methods, DATA program, Package, and Thread

• define vars,
• define dataset. 
• hash table, 
• init-run-term, define methods, 
• overload, 
• multi-threads, 
• define package, 
• use SqlStmt, 

Reference:
Using Base SAS® to Extend the SAS® System
http://support.sas.com/resources/papers/proceedings14/SAS013-2014.pdf


Parallel Data Preparation with the DS2 Programming Language
http://support.sas.com/resources/papers/proceedings14/SAS329-2014.pdf

The New SAS® Programming Language: DS2
http://support.sas.com/resources/papers/proceedings12/397-2012.pdf

I Object: SAS® Does Objects with DS2
http://support.sas.com/resources/papers/proceedings14/1283-2014.pdf

A Paradigm Shift: Complex Data Manipulations with DS2 and In-Memory Data Structures
http://support.sas.com/resources/papers/proceedings14/1797-2014.pdf