Résumé de section
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We introduce the need for graph databases, notably the insufficiences of relational database management:
- limited support for heterogeneity
- difficult to write path queries
- impossible to query the data together with the schema
- lack of support for data interoperability
- lack of support for knowledge and reasoning.
Then, we cover the two main classes of graph databases available today:
- RDF graph databases;
- Property graph databases.
We focus on the data model and query languages.