Editorial

1. Editor-in-Chief, ACM Transactions on Database Systems, June 2014-present.
2. Area Editor, Temporal Databases, Encyclopedia of Database Systems, Springer Verlag, May 2007–present. With R. T. Snodgrass
3. Editor-in-Chief, The VLDB Journal, January 2008–August 2014. With P. Bernstein, K. Y. Whang, Kian-Lee Tan, and Umesh Dayal.
4. Associate Editor, ACM Transactions on Database Systems, August 2001–July 2007.
5. Special Issue Editor, The VLDB Journal, Volume 16, Issue 1, January 2007. With L. M. Haas and M. L. Kersten.
6. Associate Editor, IEEE Data Engineering Bulletin, December 2001–November 2003.
7. Associate Editor, IEEE Transactions on Knowledge and Data Engineering. May 1997–October 2001.
8. Editorial Board Member, ACM SIGMOD Digital Review, May 1999–present.
9. Member of the TSQL2 Language Design Committee, June 1993–September, 1995.
10. Coordinator and head of three editorial boards for the Consensus Temporal Database Glossary Initiative, March 1992–February 1998.