documentation:cdm:concept_relationship
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documentation:cdm:concept_relationship [2014/12/13 18:52] cgreich |
documentation:cdm:concept_relationship [2017/08/17 15:19] clairblacketer |
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| ===== CONCEPT_RELATIONSHIP table ===== | ===== CONCEPT_RELATIONSHIP table ===== | ||
| + | **The CDM documentation is now being housed on [[https://github.com/OHDSI/CommonDataModel/wiki|github]]. The most recent release is [[https://github.com/OHDSI/CommonDataModel/releases/tag/v5.2.-bugfix.1|v5.2]]** | ||
| The CONCEPT_RELATIONSHIP table contains records that define direct relationships between any two Concepts and the nature or type of the relationship. Each type of a relationship is defined in the [[documentation:cdm:relationship|RELATIONSHIP]] table. | The CONCEPT_RELATIONSHIP table contains records that define direct relationships between any two Concepts and the nature or type of the relationship. Each type of a relationship is defined in the [[documentation:cdm:relationship|RELATIONSHIP]] table. | ||
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| |concept_id_1|Yes|integer|A foreign key to a Concept in the [[documentation:cdm:concept|CONCEPT]] table associated with the relationship. Relationships are directional, and this field represents the source concept designation.| | |concept_id_1|Yes|integer|A foreign key to a Concept in the [[documentation:cdm:concept|CONCEPT]] table associated with the relationship. Relationships are directional, and this field represents the source concept designation.| | ||
| |concept_id_2|Yes|integer|A foreign key to a Concept in the [[documentation:cdm:concept|CONCEPT]] table associated with the relationship. Relationships are directional, and this field represents the destination concept designation.| | |concept_id_2|Yes|integer|A foreign key to a Concept in the [[documentation:cdm:concept|CONCEPT]] table associated with the relationship. Relationships are directional, and this field represents the destination concept designation.| | ||
| - | |relationship_id|Yes|varchar(20)|A unique identifier to the type or nature of the Relationship as defined in the [[documentation:cdm:relationship|RELATIONSHIP]]table.| | + | |relationship_id|Yes|varchar(20)|A unique identifier to the type or nature of the Relationship as defined in the [[documentation:cdm:relationship|RELATIONSHIP]] table.| |
| |valid_start_date|Yes|date|The date when the instance of the Concept Relationship is first recorded.| | |valid_start_date|Yes|date|The date when the instance of the Concept Relationship is first recorded.| | ||
| |valid_end_date|Yes|date|The date when the Concept Relationship became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099.| | |valid_end_date|Yes|date|The date when the Concept Relationship became invalid because it was deleted or superseded (updated) by a new relationship. Default value is 31-Dec-2099.| | ||
documentation/cdm/concept_relationship.txt ยท Last modified: 2017/09/25 14:58 by clairblacketer
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