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Enumerazione ForeignKeyAction

The ForeignKeyAction enumeration is a list of constant values that specify the action that is taken when the primary key reference by a foreign key is updated.

Spazio dei nomi:  Microsoft.SqlServer.Management.Smo
Assembly:  Microsoft.SqlServer.SqlEnum (in Microsoft.SqlServer.SqlEnum.dll)

Sintassi

'Dichiarazione
Public Enumeration ForeignKeyAction
'Utilizzo
Dim instance As ForeignKeyAction
public enum ForeignKeyAction
public enum class ForeignKeyAction
type ForeignKeyAction
public enum ForeignKeyAction

Membri

Nome membro Descrizione
NoAction No action is taken.
Cascade The modification is also made to the foreign key.
SetNull The foreign key is set to null.
SetDefault The foreign key is set to the default value.

Osservazioni

The ForeignKeyAction enumeration class is served by the UpdateAction property and the DeleteAction property.