On the expressive power of the relational calculus with arithmetic constraints (extended abstract)
ICDT '90 Proceedings of the third international conference on database theory on Database theory
Normal forms and conservative properties for query languages over collection types
PODS '93 Proceedings of the twelfth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Conservativity of nested relational calculi with internal generic functions
Information Processing Letters
Towards a theory of spatial database queries (extended abstract)
PODS '94 Proceedings of the thirteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Finitely representable databases (extended abstract)
PODS '94 Proceedings of the thirteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Domain independence and the relational calculus
Acta Informatica
Selected papers of the 9th annual ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Constraint programming and database languages: a tutorial
PODS '95 Proceedings of the fourteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Linear vs. order constraint queries over rational databases (extended abstract)
PODS '96 Proceedings of the fifteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Foundations of Databases: The Logical Level
Foundations of Databases: The Logical Level
Universality of data retrieval languages
POPL '79 Proceedings of the 6th ACM SIGACT-SIGPLAN symposium on Principles of programming languages
Linear vs Polynomial Constraints in Database Query Languages
PPCP '94 Proceedings of the Second International Workshop on Principles and Practice of Constraint Programming
First-order Definability over Constraint Databases
CP '95 Proceedings of the First International Conference on Principles and Practice of Constraint Programming
On the Expressiveness of First-Order Constraint Languages
Proceedings of the ESPRIT WG CONTESSA Workshop on Constraint Databases and Applications
First-Order Queries on Finite Structures Over the Reals
LICS '95 Proceedings of the 10th Annual IEEE Symposium on Logic in Computer Science
On the Structure of Queries in Constraint Query Languages
LICS '96 Proceedings of the 11th Annual IEEE Symposium on Logic in Computer Science
Linear vs. order constraint queries over rational databases (extended abstract)
PODS '96 Proceedings of the fifteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Towards practical constraint databases (extended abstract)
PODS '96 Proceedings of the fifteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Topological queries in spatial databases
PODS '96 Proceedings of the fifteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Verifiable properties of database transactions
PODS '96 Proceedings of the fifteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Uniform quantifier elimination and constraint query processing
ISSAC '97 Proceedings of the 1997 international symposium on Symbolic and algebraic computation
On the containment and equivalence of database queries with linear constraints (extended abstract)
PODS '97 Proceedings of the sixteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
PODS '97 Proceedings of the sixteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Languages for relational databases over interpreted structures
PODS '97 Proceedings of the sixteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Relational expressive power of constraint query languages
Journal of the ACM (JACM)
Querying spatial databases via topological invariants
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
An expressive language for linear spatial database queries
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Safe query languages for constraint databases
ACM Transactions on Database Systems (TODS)
Uniform generation in spatial constraint databases and applications (Extended abstract)
PODS '00 Proceedings of the nineteenth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Complexity and expressive power of logic programming
ACM Computing Surveys (CSUR)
ACM SIGMOD Record
Introducing External Functions in Constraint Query Languages
CP '98 Proceedings of the 4th International Conference on Principles and Practice of Constraint Programming
On the Structure of Queries in Constraint Query Languages
LICS '96 Proceedings of the 11th Annual IEEE Symposium on Logic in Computer Science
On First-Order Topological Queries
LICS '00 Proceedings of the 15th Annual IEEE Symposium on Logic in Computer Science
Complexity and Expressive Power of Logic Programming
CCC '97 Proceedings of the 12th Annual IEEE Conference on Computational Complexity
Isolation and reducibility properties and the collapse result
CSR'06 Proceedings of the First international computer science conference on Theory and Applications
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