[repost ]orientdb Concepts

original:https://github.com/orientechnologies/orientdb/wiki/Concepts Storage Cluster Local Physical Cluster In-Memory cluster Data Segment Record Record types Document Flat RecordID Record version Class Abstract Class When to use class or cluster in queries? Relationships Referenced relationships 1-1 and N-1 referenced relationships 1-N and N-M referenced relationships Embedded relationships 1-1 and N-1 embedded relationships 1-N and N-M embedded relationships Inverse_relationships [...]



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