DbSyncProvider.UpdateScopeCleanupTimestampCommand 屬性

取得或設定 IDbCommand 物件，此物件包含在 scope_info 資料表中更新特定範圍之 scope_cleanup_timestamp 資料行的查詢或預存程序，以便最多標示已經針對此範圍執行清除的時間點。

此屬性與 CLS 不相容。  

命名空間: Microsoft.Synchronization.Data
組件: Microsoft.Synchronization.Data (在 microsoft.synchronization.data.dll)

語法

'宣告
Public Overridable Property UpdateScopeCleanupTimestampCommand As IDbCommand
'用途
Dim instance As DbSyncProvider
Dim value As IDbCommand

value = instance.UpdateScopeCleanupTimestampCommand

instance.UpdateScopeCleanupTimestampCommand = value

public virtual IDbCommand UpdateScopeCleanupTimestampCommand { get; set; }

public:
virtual property IDbCommand^ UpdateScopeCleanupTimestampCommand {
    IDbCommand^ get ();
    void set (IDbCommand^ value);
}

/** @property */
public IDbCommand get_UpdateScopeCleanupTimestampCommand ()

/** @property */
public void set_UpdateScopeCleanupTimestampCommand (IDbCommand value)

public function get UpdateScopeCleanupTimestampCommand () : IDbCommand

public function set UpdateScopeCleanupTimestampCommand (value : IDbCommand)

屬性值

包含查詢或預存程序的 IDbCommand 物件。

範例

下列程式碼範例會指定 UpdateScopeCleanupTimestampCommand 屬性的命令。這個命令以及針對 SelectOverlappingScopesCommand 屬性指定的命令會讓 Sync Framework 在資料表包含於一個以上之範圍的情況下適當處理清除動作。若要在完整範例的內容中檢視這段程式碼，請參閱 HOW TO：清除共同作業同步處理的中繼資料 (非 SQL Server)。

SqlCommand updScopeCleanupInfoCmd = new SqlCommand();
updScopeCleanupInfoCmd.CommandType = CommandType.Text;
updScopeCleanupInfoCmd.CommandText = "UPDATE  scope_info set " +
                                     " scope_cleanup_timestamp = @" + DbSyncSession.SyncScopeCleanupTimestamp + 
                                     " WHERE scope_name = @" + DbSyncSession.SyncScopeName + 
                                     " AND(scope_cleanup_timestamp is null or scope_cleanup_timestamp <  @" + DbSyncSession.SyncScopeCleanupTimestamp + ");" +
                                     " SET @" + DbSyncSession.SyncRowCount + " = @@rowcount";
updScopeCleanupInfoCmd.Parameters.Add("@" + DbSyncSession.SyncScopeCleanupTimestamp, SqlDbType.BigInt);
updScopeCleanupInfoCmd.Parameters.Add("@" + DbSyncSession.SyncScopeName, SqlDbType.NVarChar, 100);
updScopeCleanupInfoCmd.Parameters.Add("@" + DbSyncSession.SyncRowCount, SqlDbType.Int).Direction = ParameterDirection.Output;
sampleDbProvider.UpdateScopeCleanupTimestampCommand = updScopeCleanupInfoCmd;

Dim updScopeCleanupInfoCmd As New SqlCommand()
With updScopeCleanupInfoCmd
    .CommandType = CommandType.Text
    .CommandText = "UPDATE  scope_info set " _
                 & " scope_cleanup_timestamp = @" + DbSyncSession.SyncScopeCleanupTimestamp _
                 & " WHERE scope_name = @" + DbSyncSession.SyncScopeName _
                 & " AND(scope_cleanup_timestamp is null or scope_cleanup_timestamp <  @" + DbSyncSession.SyncScopeCleanupTimestamp + ");" _
                 & " SET @" + DbSyncSession.SyncRowCount + " = @@rowcount"
    .Parameters.Add("@" + DbSyncSession.SyncScopeCleanupTimestamp, SqlDbType.BigInt)
    .Parameters.Add("@" + DbSyncSession.SyncScopeName, SqlDbType.NVarChar, 100)
    .Parameters.Add("@" + DbSyncSession.SyncRowCount, SqlDbType.Int).Direction = ParameterDirection.Output
End With

sampleDbProvider.UpdateScopeCleanupTimestampCommand = updScopeCleanupInfoCmd

請參閱

參考

DbSyncProvider 類別
DbSyncProvider 成員
Microsoft.Synchronization.Data 命名空間