IsPersisted 属性
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.
命名空间: Microsoft.SqlServer.Management.Smo
程序集: Microsoft.SqlServer.Smo(在 Microsoft.SqlServer.Smo.dll 中)
语法
声明
<SfcPropertyAttribute> _
Public Property IsPersisted As Boolean
Get
Set
用法
Dim instance As Column
Dim value As Boolean
value = instance.IsPersisted
instance.IsPersisted = value
[SfcPropertyAttribute]
public bool IsPersisted { get; set; }
[SfcPropertyAttribute]
public:
property bool IsPersisted {
bool get ();
void set (bool value);
}
[<SfcPropertyAttribute>]
member IsPersisted : bool with get, set
function get IsPersisted () : boolean
function set IsPersisted (value : boolean)
属性值
类型:System. . :: . .Boolean
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.