UserOptions.AnsiNullDefaultOn Property

2008-12-15

Gets or sets the Boolean property value that specifies whether new columns created allow null values by default or not.

命名空间: Microsoft.SqlServer.Management.Smo
程序集: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

语法

声明
Public Property AnsiNullDefaultOn As Boolean

public bool AnsiNullDefaultOn { get; set; }

public:
property bool AnsiNullDefaultOn {
    bool get ();
    void set (bool value);
}

/** @property */
public boolean get_AnsiNullDefaultOn ()

/** @property */
public void set_AnsiNullDefaultOn (boolean value)

public function get AnsiNullDefaultOn () : boolean

public function set AnsiNullDefaultOn (value : boolean)

属性值

A Boolean value that specifies the whether newly created columns allow nulls by default or not. If True, new columns created allow null values by default. If False (default), new columns create do not allow null values by default.

备注

This property is mutually exclusive of the AnsiNullDefaultOff property. An exception occurs if you attempt to set both properties to True simultaneously. In SQL Server Management Objects (SMO) the default nullability of a new column can be overridden by setting the Nullable property of the Column object. In Transact-SQL the default nullability of a new column can be overridden by adding the NULL or NOT NULL clause to the CREATE or ALTER TABLE statement.

仅 Microsoft .NET Framework 的 2.0 版本支持此命名空间、类或成员。

示例

How to: Modify SQL Server Settings in Visual Basic .NET

线程安全

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.