Polyhedra SQL reference manual

The Polyhedra SQL reference manual (attached below in PDF format) describes the SQL language supported by Polyhedra.
The document is a reference manual not a user guide, and it is recommended that the reader should also see Polyhedra Overview, Polyhedra User's Guide and the RTRDB reference manual prior to reading the SQL Reference.
The document is aimed at the application writer and it is assumed that the reader is familiar with database query languages, relational databases and object-oriented concepts. The organisation of the document is as follows:
Section 1 Overview
Section 2 Terminology
Section 3 Lexical conventions
Section 4 Features of SQL
Section 5 SQL command reference
Polyhedra Helpdesk,
16 Dec 2020, 23:43