TY  - JOUR
A1  - Möller, Bernhard
A1  - Roocks, Patrick
T1  - An algebra of database preferences
T2  - Journal of Logical and Algebraic Methods in Programming
N2  - Preferences allow more flexible and personalised queries in database systems. Evaluation of such a query means to select the maximal elements from the respective database w.r.t. to the preference, which is a partial strict-order. We present a point-free calculus of such preferences and exemplify its use in proving algebraic laws about preferences that can be used in query optimisation. We show that this calculus can be mechanised using off-the-shelf automated first-order theorem provers.
Y1  - 2015
UR  - https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/39736
UR  - https://nbn-resolving.org/urn:nbn:de:bvb:384-opus4-397367
SN  - 2352-2208
VL  - 84
IS  - 3
SP  - 456
EP  - 481
PB  - Elsevier BV
ER  -