The psychology of computer programming
The psychology of computer programming
Specifying queries as relational expressions: the SQUARE data sublanguage
Communications of the ACM
A relational model of data for large shared data banks
Communications of the ACM
SEQUEL: A structured English query language
SIGFIDET '74 Proceedings of the 1974 ACM SIGFIDET (now SIGMOD) workshop on Data description, access and control
Experimental testing in programming languages, stylistic considerations and design techniques
AFIPS '75 Proceedings of the May 19-22, 1975, national computer conference and exposition
Experience with the evaluation of natural language question answerers
IJCAI'79 Proceedings of the 6th international joint conference on Artificial intelligence - Volume 2
SEQUEL 2: a unified approach to data definition, manipulation, and control
IBM Journal of Research and Development
ProSQL: a prototyping tool for SQL temporal language extensions
BNCOD'03 Proceedings of the 20th British national conference on Databases
The predicate tree: a metaphor for visually describing complex Boolean queries
VISUAL'07 Proceedings of the 9th international conference on Advances in visual information systems
Towards a new approach to query search engines: the Search Tree visual language
Software—Practice & Experience
An evaluation of a rule-based language for classification queries
INAP'04/WLP'04 Proceedings of the 15th international conference on Applications of Declarative Programming and Knowledge Management, and 18th international conference on Workshop on Logic Programming
Query language feature analysis by usability
Computer Languages
Playful query specification with DataPlay
Proceedings of the VLDB Endowment
DataPlay: interactive tweaking and example-driven correction of graphical database queries
Proceedings of the 25th annual ACM symposium on User interface software and technology
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Boyce et al. have recently described two data base query languages, SQUARE and SEQUEL, which are intended for use in an interactive mode by both programmers and professional non-programmers (e.g., accountants, lawyers, managers). The languages are comparable in the sense that the basic operators, underlying data structures and intended use are the same. They differ primarily in syntactic form, with a few additional differences in some of the specific features. Both of the languages are intended to be easily learned and used by people without specialized computer training.