The FedSQL programming language
As described in SAS®  9.4 and SAS Viya 3.2 Programming Documentation / FedSQL Reference - Introduction to the FedSQL Language (http://documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.2&docsetId=fedsqlref&docsetTarget=titlepage.htm&locale=en):
SAS FedSQL is a SAS proprietary implementation of ANSI SQL: 1999 core standard. It provides support for new data types and other ANSI 1999 core compliance features and proprietary extensions. FedSQL provides a scalable, threaded, high-performance way to access, manage, and share relational data in multiple data sources. When possible, FedSQL queries are optimized with multi-threaded algorithms in order to resolve large-scale operations.
For applications, FedSQL provides a common SQL syntax across all data sources. That is, FedSQL is a vendor-neutral SQL dialect that accesses data from various data sources without having to submit queries in the SQL dialect that is specific to the data source...
