Alexander Brodsky Mayur M. Bhot Manasa Chandrashekar Nathan E. Egge Xiaoyang Sean Wang A decisions query language (DQL): high-level abstraction for mathematical programming over databases. 1059-1062 2009 SIGMOD Conference http://doi.acm.org/10.1145/1559845.1559981 conf/sigmod/2009 db/conf/sigmod/sigmod2009.html#BrodskyBCEW09