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ANSI SQL-92 (MIN): https://en.wikipedia.org/wiki/SQL-92; Advanced Data Types, Case statements, BASIC SQL 

ANSI SQL-2003 (SatisfactoryRecommended): https://en.wikipedia.org/wiki/SQL:2003; SQL with window functions

ANSI SQL-2016 (BestMost): https://en.wikipedia.org/wiki/SQL:2016 ; SQL with JSON, prone to security and governance risk. 

Modeling Considerations

HDS will be a multi layer cube (KS a multi layer cube?  Isn't it just relational?) optimized for error free loading. The model will also provide business level views to assist with Business Requirements.

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