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...and managing collections of data which include not just repositories like databases, but also simpler store types such as simple files, emails, etc.<ref>{{cite ...= A place where data is stored; data at rest. A generic term that includes databases and flat files. ...

...such as object-oriented or [[semi-structured model]]s, or, more recently, graph data models and [[XML]], are often derivable from those for the relational ...nt by [[Codd's theorem]]) and the insight that important queries such as [[graph reachability]] are not expressible in this language,<ref>Aho, A.V. and Ullm ...

*[[Data cluster]], an allocation of contiguous storage in databases and file systems In '''graph theory''': ...

databases.<ref>Dzeroski, Saso, [[Nada Lavrač|Lavrač, Nada]] (Eds.), Relational Data M # [[Structure mining|Graph Mining]] ...

...onship types are arcs, is not restricted to being a hierarchy or [[Lattice graph|lattice]]. ...f record occurrences connected by relationships (CODASYL "sets"). [[cycle (graph theory)|Cycle]]s are permitted at both levels. Peer-to-Peer and Client Serv ...

{{Short description|Set of data elements in databases}} In terms of the [[relational model]] of databases, a table can be considered a convenient representation of a [[relation (dat ...

{{Short description|Computer language used to make queries into databases and information systems}} * [[Cypher Query Language|Cypher]] is a query language for the [[Neo4j]] graph database; ...

Together ABox and TBox statements make up a knowledge base or a [[knowledge graph]]. ...hin databases. With the newer, [[NoSQL]] databases and especially with RDF databases (see [[Triplestore]]) the storage distinction may no longer apply. Data and ...

{{Short description|Distance-transitive cubic graph with 20 nodes and 30 edges}} {{Infobox graph ...

...e-url=https://web.archive.org/web/20220817213913/https://libraries.usc.edu/databases/structurae-international-database-and-gallery-structures |url-status=live } {{Graph:Street map with marks |width=600 | lat=50.7 | lon=10 | zoom=4 | colorScaleF ...

in some [[Graph (data structure)|graph]] (possibly [[implicit graph|implicit]]) of objects. For example, the path expression <code>''p''.Manage ...m |author3=Y. Sagiv |name-list-style=amp | title=Querying Object-Oriented Databases| book-title=Proc. of the ACM SIGMOD | year=1992 | pages=393–402}} ...

A '''conceptual graph''' ('''CG''') is a formalism for [[knowledge representation]]. In the first ...am|diagrammatic]] calculus of logics, and a [[graph (discrete mathematics)|graph]]-based [[knowledge representation and reasoning]] model.{{sfn|Sowa|1984}} ...

One of the earliest navigational databases was [[Integrated Data Store]] (IDS), which was developed by Bachman for [[G ...entirely declarative. Offshoots of the navigational concept, such as the [[graph database]], found new uses in modern [[transaction processing]] workloads. ...

...ding and extracting useful information from [[semi-structured data]] sets. Graph mining, [[sequential pattern mining]] and [[molecule mining]] are special c ...world's interesting and mineable data does not easily fold into relational databases, though a generation of software engineers have been trained to believe thi ...

{{Short description|Creating a new graph from an existing graph}} ...f creating a new [[graph (discrete mathematics)|graph]] out of an original graph algorithmically. It has numerous applications, ranging from [[software engi ...

...fail. It is possible to obtain somewhat better performance than with other databases (published benchmarks include [[SQLite]] and [[Berkeley DB]]) but it requir ...rary that allows programs to store and manipulate [[Graph (data structure)|graph]]-like data persistently, built on top of Metakit ...

...lowing multiple parents and children. In order to retrieve data from these databases, the whole tree needs to be traversed starting from the root node. Both mod ...elational model's ease of use, contributed to the popularity of relational databases, despite their initially lower performance in comparison with the existing ...

...ovides optimized [[data structure]]s for [[table (information)|tables]], [[graph (data structure)|graphs]], and [[tree (data structure)|trees]], a host of l * [[table (information)|Table]], [[graph (data structure)|graph]], and [[tree (data structure)|tree]] [[data structure]]s supporting arbitr ...

...ee]] [[data structure]] that is used by [[main memory database|main-memory databases]], such as [[Datablitz]], [[eXtremeDB]], [[MySQL Cluster]], [[TimesTen|Orac |conference=Twelfth International Conference on Very Large Databases (VLDB 1986) ...

* [[Graph theory]] – Foundations for data structures and searching algorithms. === Databases === ...