通过

SyncAdapter.SelectIncrementalInsertsCommand 属性

  • 项目

获取或设置查询或存储过程，用于检索自上次同步之后在服务器数据库中进行的插入。

命名空间: Microsoft.Synchronization.Data.Server
程序集: Microsoft.Synchronization.Data.Server（在 microsoft.synchronization.data.server.dll 中）

语法

声明
Public Property SelectIncrementalInsertsCommand As IDbCommand
用法
Dim instance As SyncAdapter
Dim value As IDbCommand

value = instance.SelectIncrementalInsertsCommand

instance.SelectIncrementalInsertsCommand = value

public IDbCommand SelectIncrementalInsertsCommand { get; set; }

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

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

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

public function get SelectIncrementalInsertsCommand () : IDbCommand

public function set SelectIncrementalInsertsCommand (value : IDbCommand)

属性值

包含查询或存储过程的 IDbCommand 对象。

备注

使用同步适配器命令可以指定用于从服务器数据库中选择变更和向服务器数据库应用变更的查询和存储过程。有关更多信息，请参见如何指定快照同步、下载同步、上载同步和双向同步。每个命令都使用会话变量，通过这些变量可以在同步期间传递值。这些变量的指定方式与 ADO.NET 命令中查询或存储过程的其他参数相似。有关更多信息，请参见如何使用会话变量。

示例

下面的代码示例创建一个命令，该命令可在双向和仅下载同步方案中从 Customer 表中选择插入的行，并选择表架构以在各种同步中进行初始化。若要在完整示例上下文中查看此代码，请参见如何处理数据冲突和错误。

SqlCommand customerIncrInserts = new SqlCommand();
customerIncrInserts.CommandText =
    "SELECT CustomerId, CustomerName, SalesPerson, CustomerType " +
    "FROM Sales.Customer " +
    "WHERE (InsertTimestamp > @sync_last_received_anchor " +
    "AND InsertTimestamp <= @sync_new_received_anchor " +
    "AND InsertId <> @sync_client_id)";
customerIncrInserts.Parameters.Add("@" + SyncSession.SyncLastReceivedAnchor, SqlDbType.Timestamp);
customerIncrInserts.Parameters.Add("@" + SyncSession.SyncNewReceivedAnchor, SqlDbType.Timestamp);
customerIncrInserts.Parameters.Add("@" + SyncSession.SyncClientId, SqlDbType.UniqueIdentifier);
customerIncrInserts.Connection = serverConn;
customerSyncAdapter.SelectIncrementalInsertsCommand = customerIncrInserts;

Dim customerIncrInserts As New SqlCommand()
With customerIncrInserts
    .CommandText = _
        "SELECT CustomerId, CustomerName, SalesPerson, CustomerType " _
      & "FROM Sales.Customer " _
      & "WHERE (InsertTimestamp > @sync_last_received_anchor " _
      & "AND InsertTimestamp <= @sync_new_received_anchor " _
      & "AND InsertId <> @sync_client_id)"
    .Parameters.Add("@" + SyncSession.SyncLastReceivedAnchor, SqlDbType.Timestamp)
    .Parameters.Add("@" + SyncSession.SyncNewReceivedAnchor, SqlDbType.Timestamp)
    .Parameters.Add("@" + SyncSession.SyncClientId, SqlDbType.UniqueIdentifier)
    .Connection = serverConn
End With
customerSyncAdapter.SelectIncrementalInsertsCommand = customerIncrInserts

请参阅

参考

SyncAdapter 类
SyncAdapter 成员
Microsoft.Synchronization.Data.Server 命名空间