1. Chaudhuri, S., Dayal, U.: An Overview of Data Warehousing and OLAP Technology. SIGMOD Record 26(1), 65–74 (1997)
2. Chen, S., Rundensteiner, E.A.: GPIVOT: Efficient Incremental Maintenance of Complex ROLAP Views. In: Proceedings of the 21st International Conference on Data Engineering (ICDE 2005), pp. 552–563 (2005)
3. Rashid, A.N.M.B., Islam, M.S.: Role of Materialized View Maintenance with PIVOT and UNPIVOT Operators. In: Proceedings of the IEEE International Advance Computing Conference (IACC 2009), Patiala, India, pp. 951–955 (2009)
4. Zhuge, Y., Molina, H.G., Hammer, J., Widom, J.: View Maintenance in a Warehousing Environment. In: Proceedings of the ACM SIGMOD Conference, San Jose, California, pp. 316–327 (1995)
5. Lecture Notes in Computer Science;H. Gupta,1998