DATATRIEVE-11 V2.0

This document, dated July 1980, provides release notes for DATATRIEVE-11 Version 2.0, a significant upgrade over Version 1. It details major enhancements aimed at improving ease of use, data integrity, functionality, and supported data subsystems, requiring RMS-11K Version 1.8 and specific operating system versions.

Key new features include the Application Design Tool (ADT) for simplified application setup, support for data hierarchies, the COBOL OCCURS clause, and "views" for flexible data presentation. A new DATE data type, table support, automatic value validation with re-prompting, and COMPUTED BY fields enhance data management. Other improvements involve dictionary management commands (EXTRACT, SHOW FIELDS, DEFINE DICTIONARY), a new SUM statement, and an improved report writer formatter. Several previous restrictions, such as limits on collection size and report writer totals, have been removed.

The document also outlines incompatibilities, including changes to report syntax (with temporary backward compatibility), a necessary data restructuring for certain Version 1 COMP fields, and a change in precedence for statistical functions. It notes variations in central storage pool availability across operating systems. Installation guidance covers customization options through QD.MAC and specific file cleanup instructions for RSX-11M/PLUS, RSTS/E, and IAS. Minor documentation omissions and changes are listed, alongside known issues such as negative zero display for floating-point values and occasional extra lines in text formatting.