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    Relationship cardinality in ERDs (1-1 relationships)

    Piotr Kononow - Dataedo Team Piotr Kononow 2018-02-08 2018-08-21
    • One-to-one: 6.1 (implemented)
    • Other types: 7.x or later

    Currently (6.1) Dataedo ERDs support many-to-one and one-to-one relation types. We want to extend that with the ability to define cardinality at each end of relationship.

    We want to make it in two stages:

    1. Stage 1 - support for one-to-one relationships
    2. Stage 2 - support for zero-or-more and exactly-one cardinalities of relationship ends

    Please note it will not include many-to-many relationship types, as this kind of relation is not possible in physical data model (and Dataedo currently focuses on such models).

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