Column.IsPersisted Property

發行項
12/15/2008

Gets the Boolean property value that specifies whether the computed value of the Column object is saved with the data, thus avoiding a computation each time the column is accessed.

命名空間: Microsoft.SqlServer.Management.Smo
組件: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

語法

'宣告
Public Property IsPersisted As Boolean

public bool IsPersisted { get; set; }

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

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

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

public function get IsPersisted () : boolean

public function set IsPersisted (value : boolean)

屬性值

A Boolean property value that specifies whether the computed value of the Column object is saved with the data. If True, the computed value of the Column object is saved with the data. If False (default), the computed value of the Column object is computed every time the column data is requested. The IsPersisted property can only be set to True for computed columns. Otherwise, it will cause an error.

備註

只有 Microsoft .NET Framework 2.0 版支援此命名空間、類別或成員。

範例

How to: Create, Alter, and Remove a Table in Visual Basic .NET

執行緒安全性

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.

平台

開發平台

如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。

目標平台