Unacceptable File Operations in a Relational Data Base

@inproceedings{Heath1971UnacceptableFO,
  title={Unacceptable File Operations in a Relational Data Base},
  author={I. J. Heath},
  booktitle={SIGFIDET Workshop},
  year={1971}
}
This paper is written within the context of a relational data base model as presented by E. F. Codd in [1]. It also serves as a companion paper to his paper [2]. The central thesis is that a file operation should not produce unexpected 'side effects' in order to maintain a restriction (such as one-one, or many-one) on the file. Any file operation which would violate a restriction for some possible data is called 'violative'. It is determined which cases of the file operations WRITE, REWRITE… CONTINUE READING

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