sql server批量插入与更新两种解决方案

xml和表值函数的相对复杂些这里简单贴一下bcp和SqlDataAdapter进行批量跟新插入方法，未经整理还望见谅
若只是需要大批量插入数据使用bcp是最好的，若同时需要插入、删除、更新建议使用SqlDataAdapter我测试过有很高的效率，一般情况下这两种就满足需求了
bcp方式

/// <summary>

/// 大批量插入数据(2000每批次)

/// 已采用整体事物控制

/// </summary>

/// <param name="connString">数据库链接字符串</param>

/// <param name="tableName">数据库服务器上目标表名</param>

/// <param name="dt">含有和目标数据库表结构完全一致(所包含的字段名完全一致即可)的DataTable</param>

public static void BulkCopy(string connString, string tableName, DataTable dt)

{

    using (SqlConnection conn = new SqlConnection(connString))

    {

	conn.Open();



	using (SqlTransaction transaction = conn.BeginTransaction())

	{

	    using (SqlBulkCopy bulkCopy = new SqlBulkCopy(conn, SqlBulkCopyOptions.Default, transaction))

	    {

		bulkCopy.BatchSize = 2000;

		bulkCopy.BulkCopyTimeout = _CommandTimeOut;

		bulkCopy.DestinationTableName = tableName;



		try

		{

		    foreach (DataColumn col in dt.Columns)

		    {

			bulkCopy.ColumnMappings.Add(col.ColumnName, col.ColumnName);



		    }

		    bulkCopy.WriteToServer(dt);

		    transaction.Commit();

		}

		catch (Exception ex)

		{

		    transaction.Rollback();

		    throw ex;

		}

		finally

		{

		    conn.Close();

		}

	    }

	}

    }

}

SqlDataAdapter

/// <summary>

/// 批量更新数据(每批次5000)

/// </summary>

/// <param name="connString">数据库链接字符串</param>

/// <param name="table"></param>

public static void Update(string connString, DataTable table)

{

    SqlConnection conn = new SqlConnection(connString);

    SqlCommand comm = conn.CreateCommand();

    comm.CommandTimeout = _CommandTimeOut;

    comm.CommandType = CommandType.Text;

    SqlDataAdapter adapter = new SqlDataAdapter(comm);

    SqlCommandBuilder commandBulider = new SqlCommandBuilder(adapter);

    commandBulider.ConflictOption = ConflictOption.OverwriteChanges;

    try

    {

	conn.Open();

	//设置批量更新的每次处理条数

	adapter.UpdateBatchSize = 5000;

	adapter.SelectCommand.Transaction = conn.BeginTransaction();/////////////////开始事务	

	if (table.ExtendedProperties["SQL"] != null)

	{

	    adapter.SelectCommand.CommandText = table.ExtendedProperties["SQL"].ToString();

	}

	adapter.Update(table);

	adapter.SelectCommand.Transaction.Commit();/////提交事务

    }

    catch (Exception ex)

    {

	if (adapter.SelectCommand != null && adapter.SelectCommand.Transaction != null)

	{

	    adapter.SelectCommand.Transaction.Rollback();

	}

	throw ex;

    }

    finally

    {

	conn.Close();

	conn.Dispose();

    }

}