Principles of database and knowledge-base systems, Vol. I
Principles of database and knowledge-base systems, Vol. I
The complexity of querying indefinite data about linearly ordered domains
PODS '92 Proceedings of the eleventh ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Optimization of real conjunctive queries
PODS '93 Proceedings of the twelfth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Sleepers and workaholics: caching strategies in mobile environments
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Data model and query evaluation in global information systems
Journal of Intelligent Information Systems - Special issue: networked information discovery and retrieval
Containment of conjunctive queries: beyond relations as sets
ACM Transactions on Database Systems (TODS)
Semantic query optimization in Datalog programs (extended abstract)
PODS '95 Proceedings of the fourteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
An overview of data warehousing and OLAP technology
ACM SIGMOD Record
Deciding equivalences among aggregate queries
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Exact and approximate aggregation in constraint query languages
PODS '99 Proceedings of the eighteenth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Rewriting aggregate queries using views
PODS '99 Proceedings of the eighteenth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Materialized views: techniques, implementations, and applications
Materialized views: techniques, implementations, and applications
Logics with aggregate operators
Journal of the ACM (JACM)
Processing complex aggregate queries over data streams
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Optimizing Queries with Materialized Views
ICDE '95 Proceedings of the Eleventh International Conference on Data Engineering
Containment of Aggregate Queries
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Foundations of Aggregation Constraints
PPCP '94 Proceedings of the Second International Workshop on Principles and Practice of Constraint Programming
Aggregate-Query Processing in Data Warehousing Environments
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
Answering Queries with Aggregation Using Views
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Optimal implementation of conjunctive queries in relational data bases
STOC '77 Proceedings of the ninth annual ACM symposium on Theory of computing
Supporting Aggregate Queries Over Ad-Hoc Wireless Sensor Networks
WMCSA '02 Proceedings of the Fourth IEEE Workshop on Mobile Computing Systems and Applications
On the content of materialized aggregate views
Journal of Computer and System Sciences - Special issue on PODS 2000
On the equivalence and rewriting of aggregate queries
Acta Informatica
Equivalences among aggregate queries with negation
ACM Transactions on Computational Logic (TOCL)
Containment of Aggregate Queries
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Rewriting queries with arbitrary aggregation functions using views
ACM Transactions on Database Systems (TODS)
Index-based multidimensional array queries: safety and equivalence
Proceedings of the twenty-sixth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Proceedings of the 12th International Conference on Database Theory
Containment of conjunctive queries on annotated relations
Proceedings of the 12th International Conference on Database Theory
On Containment of Conjunctive Queries with Negation
ADBIS '09 Proceedings of the 13th East European Conference on Advances in Databases and Information Systems
Provenance for aggregate queries
Proceedings of the thirtieth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Parallel evaluation of conjunctive queries
Proceedings of the thirtieth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
On the containment problem for queries in conjunctive form with negation
PSI'09 Proceedings of the 7th international Andrei Ershov Memorial conference on Perspectives of Systems Informatics
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It is now common for databases to contain many gigabytes, or even many terabytes, of data. Scientific experiments in areas such as high energy physics produce data sets of enormous size, while in the business sector the emergence of decision-support systems and data warehouses has led organizations to build up gigantic collections of data. Aggregate queries allow one to retrieve concise information from such a database, since they can cover many data items while returning a small result. OLAP queries, used extensively in data warehousing, are based almost entirely on aggregation [4, 16]. Aggregate queries have also been studied in a variety of settings beyond relational databases, such as mobile computing [1], global information systems [21], stream data analysis [12], sensor networks [22] and constraint databases [2].