Using a preprocessor to implement a data manipulation language for a minicomputer data base system
This paper reports on the implementation of a powerful data manipulation language (DML) of a data base system for minicomputers. The technique of language preprocessing is employed: The preprocessor translates each DML-statement into an internal form; however, in addition to a mere translation of st...
| Published in: | ACM SIGMINI Newsletter |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Association for Computing Machinery (ACM)
1978
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1145/1014031.806630 https://dl.acm.org/doi/pdf/10.1145/1014031.806630 |
| Summary: | This paper reports on the implementation of a powerful data manipulation language (DML) of a data base system for minicomputers. The technique of language preprocessing is employed: The preprocessor translates each DML-statement into an internal form; however, in addition to a mere translation of statements the preprocessor has the function of executing so called 'compile-time tasks', i.e. those subtasks of the evaluation of a DML-statement, which can be done at compile-time already. This processing takes place in the course of program compilation and thus the size of the run-time module as well as execution-times can be reduced. The data base system FADABS is used to illustrate this approach. |
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