CPSC 504: Query Containment and Query Answering using Views.

Laks V.S. Lakshmanan, September 2007.

· A.K. Chandra and P. M. Merlin. Optimal Implementation of Conjunctive Queries in Relational Data Bases. In STOC, pages 77--90, 1977.

· Alon Levy, Alberto Mendelzon, Yehoshua Sagiv, Divesh Srivastava. Answering Queries Using Views. PODS 1995.