19
1
March
1990
Editor's Notes.
1
1
Arie Segev
Chair's Message.
2
2
Won Kim
Extending the Transaction Model to Capture more Meaning.
3
7
Marek Rusinkiewicz
Ahmed K. Elmagarmid
Yungho Leu
Witold Litwin
An SQL-Based Query Language For Networks of Relations.
8
17
Amit Basu
Rafiul Ahad
A Note on the Translation of SQL to Tuple Calculus.
18
22
Martin Gogolla
Semantic Modeling through Identification and Characterization of Objects.
23
28
Jan Jonsson
Four Valued Logic for Relational Database Systems.
29
35
G. H. Gessert
The Implication Problem for Inclusion Dependencies: A Graph Approach.
36
40
Rokia Missaoui
Robert Godin
Response to R. T. Snodgrass's Letter in SIGMOD Record.
41
42
C. J. Date
Correction.
43
43
Toby J. Teorey
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
Toby J. Teorey
ACM News.
64
69
Toby J. Teorey