On the operations over relations in the relational model data with two types of null values.

Pavlović, Gordana M.. "On the operations over relations in the relational model data with two types of null values.." Publications de l'Institut Mathématique. Nouvelle Série 34(48) (1983): 151-163. <http://eudml.org/doc/257662>.

@article{Pavlović1983,
author = {Pavlović, Gordana M.},
journal = {Publications de l'Institut Mathématique. Nouvelle Série},
keywords = {Three-valued logic; null values; Relational algebra; query optimization},
language = {eng},
pages = {151-163},
publisher = {Izdaje Matematički Institut SANU},
title = {On the operations over relations in the relational model data with two types of null values.},
url = {http://eudml.org/doc/257662},
volume = {34(48)},
year = {1983},
}

TY - JOUR
AU - Pavlović, Gordana M.
TI - On the operations over relations in the relational model data with two types of null values.
JO - Publications de l'Institut Mathématique. Nouvelle Série
PY - 1983
PB - Izdaje Matematički Institut SANU
VL - 34(48)
SP - 151
EP - 163
LA - eng
KW - Three-valued logic; null values; Relational algebra; query optimization
UR - http://eudml.org/doc/257662
ER -