NUL: A Navigational User's Language for a Network Structured Data Base

@inproceedings{Deheneffe1976NULAN,
  title={NUL: A Navigational User's Language for a Network Structured Data Base},
  author={Claude Deheneffe and Henri Hennebert},
  booktitle={SIGMOD Conference},
  year={1976}
}
This paper presents an end-user's language which tries to solve the problem of an easy navigation through a DBTG-like data base structure. A request is expressed in a nonprocedural and hierarchically structured fashion. The dialogue is split into two main parts : first a data context definition, then the manipulations of this context.A context is a part of the data base that the user is concerned with. A context definition is formed by a set of labelled lines; each line is a condition… CONTINUE READING

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