Data Base Management System (DBMS-10)

This manual provides detailed procedures for Data Base Administrators managing the DBMS-10 system. It covers:

• Major Concepts: Architectural overview, including the Data Base Control System (DBCS), User Working Area (UWA), and run-units.
• Languages: Specifications for the Device Media Control Language (DMCL), Schema Data Description Language (DDL), and COBOL Sub-Schema DDL.
• Administration: Roles and responsibilities including organization, protection, documentation, and performance monitoring.
• Technical Implementation: Details on data organization (pages, lines, database keys) and access methods (store and find algorithms).
• Recovery: Protocols for recovery files, prefix sectors, and managing system failures.
• Appendices: A comprehensive list of error messages, status condition codes, and reserved words.