SIGMOD Record, Volume 20

Volume 20, Number 1, March 1991

• Maurizio Rafanelli, Fabrizio L. Ricci:
  A Functional Model for Macro-Databases. 3-8
  
• John T. Robinson:
  Some Further Analysis of the Essential Blocking Recurrence. 9-11
  
• Jim Diederich:
  Minimal Covers Revisited: Correct and Efficient Algorithms. 12-13
  
• Michael D. Soo:
  Bibliography on Temporal Databases. 14-23
  
• Gottfried Vossen:
  Bibliography on Object-Oriented Database Management. 24-46
  
• Satish M. Thatte:
  A Modular and Open Object-Oriented Database System. 47-52
  
• Philippe Richard:
  research at Altaïr. 53-59
  

Volume 20, Number 2, June 1991

Volume 20, Number 3, September 1991

• Betty Salzberg, David B. Lomet:
  Spatial Database Access Methods. 5-15
  
• Claudio Fratarcangeli:
  Technique for Universal Quantification in SQL. 16-24
  
• Victor J. Streeter:
  An Outline of MQL. 25-29
  
• G. H. Gessert:
  Handling Missing Data by Using Stored Truth Values. 30-42
  
• Kwok-bun Yue:
  A More General Model For Handlinh Missing Information In Relational DataBases Using A 3-Valued Logic. 43-49
  
• H. W. Buff:
  A Complete Identity Set for Codd Algebras. 50-51
  
• Nick Roussopoulos, Alex Delis:
  Modern Client-Server DBMS Architectures. 52-61
  
• Tina M. Harvey, Craig W. Schnepf, Mark A. Roth:
  The Design of the Triton Nested Relational Database System. 62-72
  
• Gomer Thomas:
  Practitioner Problems in Need of Database Research. 73
  
• Kyoji Kawagoe:
  Continuous Media Data Manegement. 74-75
  
• Ravi Krishnamurthy, Tomasz Imielinski:
  Research Directions in Knowledge Discovery. 76-78
  
• David S. Reiner:
  Research Areas Related to Practical Problems in Automated Database Design. 79-82
  
• Antoni Wolski:
  User Surveys on Database Research Needs in Finland. 83-84
  
• Renato Barrera, Andrew U. Frank, Khaled K. Al-Taha:
  Temporal Relations in Geographic Information Systems: A Workshop at the University of Maine. 85-91
  
• Laura M. Haas, Patricia G. Selinger:
  Database Research at the IBM Almaden Research Center. 92-98
  
• Judith Copler:
  The Indiana Center for Database Systems. 99-105
  
• Alexander Thomasian:
  Centralized Concurrency Control Methods for High-End TP. 106-115
  

Volume 20, Number 4, December 1991

• Amit P. Sheth:
  Semantic Issues in Multidatabase Systems - Preface by the Special Issue Editor. 5-9
  
• William Kent:
  The Breakdown of the Information Model in Multi-Database Systems. 10-15
  
• Vincent Ventrone, Sandra Heiler:
  Semantic Heterogeneity as a Result of Domain Evolution. 16-20
  
• Leonid A. Kalinichenko:
  An Anatomy of the Information Resource Semantic Abstraction. 21-24
  
• Frank Eliassen, Randi Karlsen:
  Interoperability and Object Identity. 25-29
  
• Michael F. Worboys, S. Misbah Deen:
  Semantic Heterogeneity in Distributed Geographic Databases. 30-34
  
• Dipayan Gangopadhyay, Thierry Barsalou:
  On the Semantic Equivalence of Heterogeneous Representations in Multimodel Multidatabase Systems. 35-39
  
• James Geller, Yehoshua Perl, Erich J. Neuhold:
  Structure and Semantics in OODB Class Specifications. 40-43
  
• Fèlix Saltor, Malú Castellanos, Manuel García-Solaco:
  Suitability of Data Models as Canonical Models for Federated Databases. 44-48
  
• Stefano Spaccapietra, Christine Parent:
  Conflicts and Correspondence Assertions in Interoperable Databases. 49-54
  
• Susan Darling Urban, Jian Wu:
  Resolving Semantic Heterogeneity Through the Explicit Representation of Data Model Semantics. 55-58
  
• Peter Fankhauser, Martin Kracker, Erich J. Neuhold:
  Semantic vs. Structural Resemblance of Classes. 59-63
  
• Abhirup Chatterjee, Arie Segev:
  Data Manipulation in Heterogeneous Databases. 64-68
  
• Doyle Weishar, Larry Kerschberg:
  Data/Knowledge Packets as a Means of Supporting Semantic Heterogeneity in Multidatabase Systems. 69-73
  
• Witold Litwin, Mohammad A. Ketabchi, Ravi Krishnamurthy:
  First Order Normal Form for Relational Databases and Multidatabases. 74-76
  
• Michael Siegel, Stuart E. Madnick:
  Context Interchange: Sharing the Meaning of Data. 77-78
  
• Clement T. Yu, Biao Jia, Wei Sun, Son Dao:
  Determining Relationships among Names in Heterogeneous Databases. 79-80
  

• Kian-Lee Tan, Hongjun Lu:
  A Note on the Strategy Space of Multiway Join Query Optimization Problem in Parallel Systems. 81-82
  
• Cheng Hsu:
  The Metadatabase Project at Rensselaer. 83-90
  
• Frank Manola:
  The Third-Generation/OODBMS Manifesto, Commercial version. 91
  
• Marie-Anne Neimat, Ming-Chien Shan:
  Database Research at HP Labs. 92-97
  
• Shalom Tsur:
  Some Recent Developments in Deductive Databases. 98-101
  
• Marianne Winslett:
  Funding for Small US Businesses and from DARPA and NASA. 102-104