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An Algebra for a General Entity-Relationship Model
July 1985 (vol. 11 no. 7)
pp. 634-643
| ASCII Text | x | ||
| C. Parent, S. Spaccapietra, "An Algebra for a General Entity-Relationship Model," IEEE Transactions on Software Engineering, vol. 11, no. 7, pp. 634-643, July, 1985. | |||
| BibTex | x | ||
| @article{ 10.1109/TSE.1985.232507, author = {C. Parent and S. Spaccapietra}, title = {An Algebra for a General Entity-Relationship Model}, journal ={IEEE Transactions on Software Engineering}, volume = {11}, number = {7}, issn = {0098-5589}, year = {1985}, pages = {634-643}, doi = {http://doi.ieeecomputersociety.org/10.1109/TSE.1985.232507}, publisher = {IEEE Computer Society}, address = {Los Alamitos, CA, USA}, } | |||
| RefWorks Procite/RefMan/Endnote | x | ||
| TY - JOUR JO - IEEE Transactions on Software Engineering TI - An Algebra for a General Entity-Relationship Model IS - 7 SN - 0098-5589 SP634 EP643 EPD - 634-643 A1 - C. Parent, A1 - S. Spaccapietra, PY - 1985 KW - entity-relationship model KW - Algebra KW - algebraic operators KW - completeness KW - data manipulation language KW - data model VL - 11 JA - IEEE Transactions on Software Engineering ER - | |||
Although many data manipulation languages (DML's) have been proposed for the entity-relationship (ER) model, there is no agreement on what are the basic manipulations that any ER DML must offer. Moreover, there is no DML which fully supports all the capabilities of a general ER model with n-ary relationships, relationships with attributes, optional, complex, and multivalued attributes. This paper consequently proposes a definition of a set of algebraic operators to be applied on a general ER database. The algebra is said to be complete through equivalence with the usual definition of completeness for relational data manipulation languages. This work is intended to provide a sound basis for the definition of complete entity-relationship DML's, an essential feature to make the ER model fully operational.
Index Terms:
entity-relationship model, Algebra, algebraic operators, completeness, data manipulation language, data model
Citation:
C. Parent, S. Spaccapietra, "An Algebra for a General Entity-Relationship Model," IEEE Transactions on Software Engineering, vol. 11, no. 7, pp. 634-643, July 1985, doi:10.1109/TSE.1985.232507
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