An Implementation of a CODASYL Based Data Base Management System under the UNIX Operating System

• Main Author: Howard, John E
• Other Authors: NAVAL POSTGRADUATE SCHOOL MONTEREY CA
• Format: Text
• Language: English
• Published: 1976
• Subjects: Administration and Management; Computer Programming and Software; *DATA BASES; *MANAGEMENT INFORMATION SYSTEMS; *NETWORK ANALYSIS(MANAGEMENT); COMPUTER APPLICATIONS; COMPUTER PROGRAMS; INFORMATION RETRIEVAL; PROGRAMMING LANGUAGES; THESES; *DATA BASE MANAGEMENT SYSTEMS; PDP 11/50 COMPUTERS; UNIX COMPUTER PROGRAM; CODASYL(CONFERENCE ON DATA SYSTEMS LANGUAGE); CONFERENCE ON DATA SYSTEMS LANGUAGE; DML
• Online Access: http://www.dtic.mil/docs/citations/ADA028893; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA028893

This thesis reports the implementation of a Data Base Management System (DBMS) based on the CODASYL design. The DBMS was implemented on a DEC PDP 11/50 computer utilizing the UNIX operating system. Background material includes a discussion of data base history and techniques, design of UNIX AND THE C programming language. The research performed was the adaptation of the CODASYL DBMS design to the UNIX environment and the design of a C language Data Description Language (DDL) and Data Manipulation Language (DML) to interface the DBMS to user programs. Conclusions and recommendations for improvements are also included.