SIGMOD Record, Volume 19

Volume 19, Number 1, March 1990

• Arie Segev:
  Editor's Notes. 1
  
• Won Kim:
  Chair's Message. 2
  
• Marek Rusinkiewicz, Ahmed K. Elmagarmid, Yungho Leu, Witold Litwin:
  Extending the Transaction Model to Capture more Meaning. 3-7
  
• Amit Basu, Rafiul Ahad:
  An SQL-Based Query Language For Networks of Relations. 8-17
  
• Martin Gogolla:
  A Note on the Translation of SQL to Tuple Calculus. 18-22
  
• Jan Jonsson:
  Semantic Modeling through Identification and Characterization of Objects. 23-28
  
• G. H. Gessert:
  Four Valued Logic for Relational Database Systems. 29-35
  
• Rokia Missaoui, Robert Godin:
  The Implication Problem for Inclusion Dependencies: A Graph Approach. 36-40
  
• C. J. Date:
  Response to R. T. Snodgrass's Letter in SIGMOD Record. 41-42
  
• Toby J. Teorey:
  Correction. 43
  
• Announcements and Calls for Papers: POS 90, Management of Replicated Data 90, IFIP WG8.4 90, ICDT 90, Multimedia Inf. Systems 91, JCIT-5, Software Eng. J., ER 90, DEXA 90, ... 44-63
  
• ACM News. 64-69
  

Volume 19, Number 2, June 1990

Volume 19, Number 3, September 1990

• SIGMOD Institutional Sponsors. 1
  
• Arie Segev:
  Editor's Notes. 2
  
• Won Kim:
  Chair's Message. 3-4
  
• Roberto Zicari:
  Incomplete Information in Object-Oriented Databases. 5-16
  
• Bhavani M. Thuraisingham:
  Computing Transitive Closures of Multilevel Relations. 17-23
  
• Li Lei, Georges-Henri Moll, Jacques Kouloumdjian:
  A Deductive Database Architecture Based on Partial Evaluation. 24-29
  
• Jyrki Nummenmaa, Peter Thanisch:
  Yet Another Note on Minimal Covers. 30
  
• Michael Stonebraker, Lawrence A. Rowe, Bruce G. Lindsay, Jim Gray, Michael J. Carey, Michael L. Brodie, Philip A. Bernstein, David Beech:
  Third-Generation Database System Manifesto - The Committee for Advanced DBMS Function. 31-44
  
• Amit P. Sheth:
  Database Research at Bellcore. 45-52
  
• Yuri Breitbart:
  Multidatabase Interoperability. 53-60
  
• Announcements and Calls for Papers: VLDB Journal, Critical Issues 90, CR, SIGIR Forum, IEEE Computer, CCW 91, ICDCS 91, JCIT-5, ... 61-83
  
• News. 84-85
  

Volume 19, Number 4, December 1990

• SIGMOD Institutional Sponsors. 1
  
• Arie Segev:
  Editor's Notes. 2
  
• Won Kim:
  Chair's Message. 3
  
• Won Kim:
  Directions For Future Database Research & Development - Letter from the Issue Editor. 4-5
  
• Abraham Silberschatz, Michael Stonebraker, Jeffrey D. Ullman:
  Database Systems: Achievements and Opportunities - The "Lagunita" Report of the NSF Invitational Workshop on the Future of Database System Research held in Palo Alto, California, February 22-23, 1990. 6-22
  
• Peter Scheuermann, Ahmed K. Elmagarmid, Hector Garcia-Molina, Frank Manola, Dennis McLeod, Arnon Rosenthal, Marjorie Templeton:
  Report on the Workshop on Heterogenous Database Systems held at Northwestern University, Evanston, Illinois, December 11-13, 1989, Sponsored by NSF. 23-31
  
• James C. French, Anita K. Jones, John L. Pfaltz:
  Summary of the Final Report of the NSF Workshop on Scientific Database Management. 32-40
  
• Serge Abiteboul, Peter Buneman, Claude Delobel, Richard Hull, Paris C. Kanellakis, Victor Vianu:
  New Hope on Data Models and Types: Report of an NSF-INRIA Workshop. 41-48
  
• François Bancilhon, Won Kim:
  Object-Oriented Database Systems: In Transition. 49-53
  
• Michael J. Carey, Laura M. Haas:
  Extensible Database Management Systems. 54-60
  
• Oliver Günther, Alejandro P. Buchmann:
  Research Issues in Spatial Databases. 61-68
  
• Amihai Motro:
  Accommodating Imprecision in Database Systems: Issues and Solutions. 69-74
  
• Jeffrey D. Ullman, Carlo Zaniolo:
  Deductive Databases: Achievements and Future Directions. 75-82
  
• Richard T. Snodgrass:
  Temporal Databases - Status and Research Directions. 83-89
  
• Teresa F. Lunt, Eduardo B. Fernández:
  Database Security. 90-97
  
• Hector Garcia-Molina, Bruce G. Lindsay:
  Research Directions for Distributed Databases. 98-103
  
• David J. DeWitt, Jim Gray:
  Parallel Database Systems: The Future of Database Processing or a Passing Fad? 104-112
  
• Michael Stonebraker:
  Data Base Research at Berkeley. 113-118
  
• Arthur M. Keller, Peter Rathmann, Jeffrey D. Ullman, Gio Wiederhold:
  Selected Database Research at Stanford. 119-122
  
• Sushil Jajodia, Ravi S. Sandhu:
  Database Security: Current Status and Key Issues. 123-126
  
• Fèlix Saltor:
  Congresses on Databases. 127-128
  
• Announcements and Calls for Papers: SIGMOD 91, PODS 91, VLDB 91, ER 91, SIGIR 91, SSD 91, BNCOD-9, ECOOP 91, DEXA 91, WADS 91, SIGSOFT 91. 129-139