VistaDB 6
VistaDB.DDA Namespace / VistaDBReferentialIntegrity Enumeration


In This Topic
    VistaDBReferentialIntegrity Enumeration
    In This Topic
    The referential integrity mode types
    Syntax
    'Declaration
     
    
    Public Enum VistaDBReferentialIntegrity 
       Inherits System.Enum
    'Usage
     
    
    Dim instance As VistaDBReferentialIntegrity
    public enum VistaDBReferentialIntegrity : System.Enum 
    Members
    MemberDescription
    CascadeWhen set, the engine deletes or updates related foreign keys
    NoneNo action taken on related rows. The core engine raises exception when trying to delete or update the primary key with a value that is not referenced by foreign key
    SetDefaultWhen set, the engine tries to set the values of related foreign keys to the respective default values. Afterward it checks the primary reference in according with NoAction
    SetNullWhen set, the engine sets the values of related foreign keys to the nulls
    Inheritance Hierarchy

    System.Object
       System.ValueType
          System.Enum
             VistaDB.DDA.VistaDBReferentialIntegrity

    Requirements

    Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

    See Also