Datatrieve-11 Reference Manual

This reference manual provides detailed information on the DATATRIEVE-11 data management language, version V3, for use with RSX-11M, RSX-11M PLUS, and RSTS/E operating systems. It covers fundamental language concepts, value and boolean expressions, record selection expressions (RSE), and record definitions. Additionally, it offers an alphabetical guide to all DATATRIEVE-11 commands, statements, and definition clauses, including syntax, arguments, restrictions, results, and usage examples. The document is designed for users with prior experience in DATATRIEVE and data processing concepts.