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

机译:UNIX操作系统下CODasYL基于数据库管理系统的实现。

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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 11/50computer 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. (Author)

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