Smalltalk-80: the language and its implementation
Smalltalk-80: the language and its implementation
A semantics of multiple inheritance.
Proc. of the international symposium on Semantics of data types
GALILEO: a strongly-typed, interactive conceptual language
ACM Transactions on Database Systems (TODS)
The design of a relational database system with abstract data types for domains
ACM Transactions on Database Systems (TODS)
The C++ programming language
The relational model with relation-valued attributes
Information Systems
Distrbution and Abstract Types in Emerald
IEEE Transactions on Software Engineering - Special issue on distributed systems
A new normal form for nested relations
ACM Transactions on Database Systems (TODS)
A calculus for complex objects
PODS '86 Proceedings of the fifth ACM SIGACT-SIGMOD symposium on Principles of database systems
SIGMOD '86 Proceedings of the 1986 ACM SIGMOD international conference on Management of data
Safety and correct translation of relational calculus formulas
PODS '87 Proceedings of the sixth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Object structure in the Emerald system
OOPLSA '86 Conference proceedings on Object-oriented programming systems, languages and applications
OOPLSA '86 Conference proceedings on Object-oriented programming systems, languages and applications
OOPLSA '86 Conference proceedings on Object-oriented programming systems, languages and applications
Development of an object-oriented DBMS
OOPLSA '86 Conference proceedings on Object-oriented programming systems, languages and applications
The design of ¬ 1NF relational databases into nested normal form
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
The EXODUS optimizer generator
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
A rule-based view of query optimization
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
Semantics and implementation of schema evolution in object-oriented databases
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
Semantic database modeling: survey, applications, and research issues
ACM Computing Surveys (CSUR)
KMS: a distributed hypermedia system for managing knowledge in organizations
Communications of the ACM
Reflections on NoteCards: seven issues for the next generation of hypermedia systems
Communications of the ACM
HAM: a general purpose hypertext abstract machine
Communications of the ACM
A data model and query language for EXODUS
SIGMOD '88 Proceedings of the 1988 ACM SIGMOD international conference on Management of data
O2, an object-oriented data model
SIGMOD '88 Proceedings of the 1988 ACM SIGMOD international conference on Management of data
The design and implementation of O2
Lecture notes in computer science on Advances in object-oriented database systems
Identity, equality and query optimization
Lecture notes in computer science on Advances in object-oriented database systems
Data abstraction and query optimization
Lecture notes in computer science on Advances in object-oriented database systems
Type theories and object-oriented programmimg
ACM Computing Surveys (CSUR)
Extensible query processing in starburst
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
An object-oriented query algebra
Data Engineering
A Relational Calculus with Set Operators, Its Safety, and Equivalent Graphical Languages
IEEE Transactions on Software Engineering
A model of queries for object-oriented databases
VLDB '89 Proceedings of the 15th international conference on Very large data bases
OQL: a query language for manipulating object-oriented databases
VLDB '89 Proceedings of the 15th international conference on Very large data bases
Type consistency of queries in an object-oriented database system
OOPSLA/ECOOP '90 Proceedings of the European conference on object-oriented programming on Object-oriented programming systems, languages, and applications
Relational databases and knowledge bases
Relational databases and knowledge bases
ICDT '90 Proceedings of the third international conference on database theory on Database theory
Queries and query processing in object-oriented database systems
Queries and query processing in object-oriented database systems
Object-oriented database systems
Proceedings of the seventh ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Extending the database relational model to capture more meaning
ACM Transactions on Database Systems (TODS)
Database abstractions: aggregation and generalization
ACM Transactions on Database Systems (TODS)
Horn clauses and database dependencies
Journal of the ACM (JACM)
Why properties are objects or some refinements of “is-a”
ACM '86 Proceedings of 1986 ACM Fall joint computer conference
Query Optimization in Database Systems
ACM Computing Surveys (CSUR)
A relational model of data for large shared data banks
Communications of the ACM
Principles of Database Systems
Principles of Database Systems
Remarks on the algebra of non first normal form relations
PODS '82 Proceedings of the 1st ACM SIGACT-SIGMOD symposium on Principles of database systems
Making smalltalk a database system
SIGMOD '84 Proceedings of the 1984 ACM SIGMOD international conference on Management of data
Queries in Object-Oriented Databases
Proceedings of the Fourth International Conference on Data Engineering
Schema Virtualization in Object-Oriented Databases
Proceedings of the Fourth International Conference on Data Engineering
A Query Algebra for Object-Oriented Databases
Proceedings of the Sixth International Conference on Data Engineering
Type consistency of queries in an object-oriented database system
OOPSLA/ECOOP '90 Proceedings of the European conference on object-oriented programming on Object-oriented programming systems, languages, and applications
MORE: Multimedia Object Retrieval Environment
HYPERTEXT '93 Proceedings of the fifth ACM conference on Hypertext
Experiences building the open OODB query optimizer
SIGMOD '93 Proceedings of the 1993 ACM SIGMOD international conference on Management of data
An extensible query model and its languages for a uniform behavioral object management system
CIKM '93 Proceedings of the second international conference on Information and knowledge management
An object algebra for object-oriented database systems
ACM SIGMIS Database
Optimizing disjunctive queries with expensive predicates
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
A visual retrieval environment for hypermedia information systems
ACM Transactions on Information Systems (TOIS)
On formal models for object-oriented databases
ACM SIGPLAN OOPS Messenger
An extensible query optimizer for an objectbase management system
CIKM '95 Proceedings of the fourth international conference on Information and knowledge management
Rule languages and internal algebras for rule-based optimizers
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Tigukat: a uniform behavioral objectbase management system
The VLDB Journal — The International Journal on Very Large Data Bases - Persistent object systems
Main Memory Orientated Optimization of OO Queries Using Typed Datalog with Foreign Predicates
IEEE Transactions on Knowledge and Data Engineering
Query Optimization and Execution Plan Generation in Object-Oriented Data Management Systems
IEEE Transactions on Knowledge and Data Engineering
Join Index Hierarchy: An Indexing Structure for Efficient Navigation in Object-Oriented Databases
IEEE Transactions on Knowledge and Data Engineering
Optimization and Evaluation of Disjunctive Queries
IEEE Transactions on Knowledge and Data Engineering
Dynamic Taxonomies: A Model for Large Information Bases
IEEE Transactions on Knowledge and Data Engineering
A Query Algebra for Program Databases
IEEE Transactions on Software Engineering
Querying and Updating the File
VLDB '93 Proceedings of the 19th International Conference on Very Large Data Bases
Join Index Hierarchies for Supporting Efficient Navigations in Object-Oriented Databases
VLDB '94 Proceedings of the 20th International Conference on Very Large Data Bases
Bypassing Joins in Disjunctive Queries
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
Processing Object-Oriented Queries with Invertible Late Bound Functions
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
An optimization of disjunctive queries: union-pushdown
COMPSAC '97 Proceedings of the 21st International Computer Software and Applications Conference
An Object Algebra for the ODMG Standard
ADBIS '02 Proceedings of the 6th East European Conference on Advances in Databases and Information Systems
Control of an Extensible Query Optimizer: A Planning-Based Approach
VLDB '93 Proceedings of the 19th International Conference on Very Large Data Bases
Description logics for semantic query optimization in object-oriented database systems
ACM Transactions on Database Systems (TODS)
Query processing over object views of relational data
The VLDB Journal — The International Journal on Very Large Data Bases
TIGUKAT object management system: initial design and current directions
CASCON '93 Proceedings of the 1993 conference of the Centre for Advanced Studies on Collaborative research: software engineering - Volume 1
Guided interactive information access for e-citizens
EGOV'05 Proceedings of the 4th international conference on Electronic Government
No (e-)democracy without (e-)knowledge
TCGOV'05 Proceedings of the 2005 international conference on E-Government: towards Electronic Democracy
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Object-oriented database mangement systems (OODBMS) combine the data abstraction and computational models of object-oriented programming languages with the query and performance capabilities of database management systems. A concise, formal data model for OODBMS has not been universally accepted, preventing detailed investigation of various system issues such as query processing. We define a data model that captures the essence of classification-based object-oriented systems and formalize concepts such as object identity, inheritence, and methods. The main topic of the paper is the presentation of a query processing methodology complete with an object calculus to object algebra translation are discussed in detail. The paper concludes with a discussion of equivalence-preserving transformation rules for object algebra expressions.