Backup.RetainDays Property

Gets or sets the number of days that must elapse before a backup set can be overwritten.

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 RetainDays As Integer
public int RetainDays { get; set; }
public:
property int RetainDays {
    int get ();
    void set (int value);
}
/** @property */
public int get_RetainDays ()

/** @property */
public void set_RetainDays (int value)
public function get RetainDays () : int

public function set RetainDays (value : int)

属性值

An Int32 value that specifies the retention period in days. By default, the value is set to zero.

备注

Backup set retention period is set when media is initialized. When using SQL Server Management Objects (SMO) to automate Microsoft SQL Server backup, the RetainDays property is only evaluated when the Initialize property is True.

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

示例

How to: Back Up Databases and Transaction Logs 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.

平台

开发平台

有关支持的平台列表,请参阅安装 SQL Server 2005 的硬件和软件要求。

目标平台

有关支持的平台列表,请参阅安装 SQL Server 2005 的硬件和软件要求。

请参阅

参考

Backup Class
Backup Members
Microsoft.SqlServer.Management.Smo Namespace

其他资源

在 SQL Server 中备份和还原数据库
BACKUP (Transact-SQL)