The DS2 language leverages the multithreaded architecture of SAS© Viya™ and the CAS server for efficient parallel execution. DS2 programs can be executed via the PROC DS2 procedure, the ds2.runDS2 action of CAS (usable with PROC CAS or third-party languages), and can integrate FedSQL statements. It also offers the ability to publish and execute DATA step and DS2 models on CAS, Hadoop, or Teradata. DS2 supports various data sources, including Apache Spark and JDBC-compatible databases via the SAS© Compute server or SAS© data connectors for CAS. It is important to note that some functionalities, such as the DS2 SQLSTMT package, the DS2 SQLEXEC function, and certain uses of the DS2 HASH package, are not directly supported on the CAS server. On CAS, only caslibs defined in the CAS session are accessible by DS2 programs.
