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one-to-many relationship

DW and OLAP terms

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one-to-many relationship
In relational databases, a relationship between two tables in which a single row in the first table can be related to one or more rows in the second table, but a row in the second table can be related only to one row in the first table.

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one-to-many relationship
one-to-many relationship

An association between two tables in which:

· The primary key value of each record in the primary table corresponds to the value in the matching field or fields of many records in the related table.
· The primary key value of each record in the related table corresponds to the value in the matching field or fields of one and only one record in the primary table.


| one-to-many relationship in English