Meaning Foreign key
What does Foreign key mean? Here you find 5 meanings of the word Foreign key. You can also add a definition of Foreign key yourself
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Foreign keyA value that represents a reference to a tuple (a row in a table) containing the matching candidate key value. Scope Notes: The problem of ensuring that the database does not include any invalid forei [..]
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Foreign keyIn relational database management systems, a filed or item in a table that contains a value identifying rows in another table. It is used in joining two tables by defining the relationship between two [..]
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Foreign keyIn SQL (Standard Query Language), a column in a table that matches the primary key column in some other table. Declaring a foreign key requires there to already be a matching record (one to one or man [..]
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Foreign keyA foreign key is a column or group of columns in a relational database table that provides a link between data in two tables. It acts as a cross-reference between tables because it references the prim [..]
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Foreign keyOne or more columns in a table intended to contain only values that match the related primary
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