A relational model of data for large shared data banks
Communications of the ACM
An ALGOL-based associative language
Communications of the ACM
A computer system for inference execution and data retrieval
Communications of the ACM
Treating hierarchical data structures in the SDC Time-Shared Data Management System (TDMS)
ACM '67 Proceedings of the 1967 22nd national conference
Tramp: An interpretive associative processor with deductive capabilities
ACM '68 Proceedings of the 1968 23rd ACM national conference
Description of a set-theoretic data structure
AFIPS '68 (Fall, part I) Proceedings of the December 9-11, 1968, fall joint computer conference, part I
The MacAIMS data management system
SIGFIDET '70 Proceedings of the 1970 ACM SIGFIDET (now SIGMOD) Workshop on Data Description, Access and Control
A schema for describing a relational data base
SIGFIDET '70 Proceedings of the 1970 ACM SIGFIDET (now SIGMOD) Workshop on Data Description, Access and Control
Unacceptable file operations in a relational data base
SIGFIDET '71 Proceedings of the 1971 ACM SIGFIDET (now SIGMOD) Workshop on Data Description, Access and Control
File definition and logical data independence
SIGFIDET '71 Proceedings of the 1971 ACM SIGFIDET (now SIGMOD) Workshop on Data Description, Access and Control
Storage structure and physical data independence
SIGFIDET '71 Proceedings of the 1971 ACM SIGFIDET (now SIGMOD) Workshop on Data Description, Access and Control
A practitioner's view of relational data base theory
ACM SIGMOD Record
Normalized data base structure: a brief tutorial
SIGFIDET '71 Proceedings of the 1971 ACM SIGFIDET (now SIGMOD) Workshop on Data Description, Access and Control
File definition and logical data independence
SIGFIDET '71 Proceedings of the 1971 ACM SIGFIDET (now SIGMOD) Workshop on Data Description, Access and Control
Relation-collapse: an optimisation technique for the similarity algebra SA
ADBIS'05 Proceedings of the 9th East European conference on Advances in Databases and Information Systems
A poset based approach for condition weighting
AMR'08 Proceedings of the 6th international conference on Adaptive Multimedia Retrieval: identifying, Summarizing, and Recommending Image and Music
Abstract interpretation of database query languages
Computer Languages, Systems and Structures
A familial specification language for database application systems
Computer Languages
Query language feature analysis by usability
Computer Languages
Bibliography on data base structures
ACM SIGMIS Database
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Three principal types of language for data base manipulation are identified: the low-level, procedure-oriented (typified by the CODASYL-proposed DML), the intermediate level, algebraic (typified by the Project MAC MacAIMS language), and the high level, relational calculus-based data sublanguage, an example of which is described in this paper. The language description is informal and stresses concepts and principles. Following this, arguments are presented for the superiority of the calculus-based type of data base sub-language over the algebraic, and for the algebraic over the low-level procedural. These arguments are particularly relevant to the questions of inter-system compatibility and standardization.