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老态龙钟
مفتاح خارجي

foreign key SOST INFORM

Foreign Key ECON

foreign key association SOST INFORM

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Esempi monolingue (non verificati dalla Redazione di PONS)

A table can also have a foreign key which indicates that field is linked to the primary key of another table.
en.wikipedia.org
Both foreign keys and superkeys (that includes candidate keys) can be composite, that is, can be composed of several attributes.
en.wikipedia.org
File cross-connects or joins are handled as a synonym definition of the foreign key.
en.wikipedia.org
The primary key of a fact table is usually a composite key that is made up of all of its foreign keys.
en.wikipedia.org
The fact table contains business facts (or "measures"), and foreign keys which refer to candidate keys (normally primary keys) in the dimension tables.
en.wikipedia.org

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