SQL Server 批量插入數據的兩種方法

public static void BulkToDB(DataTable dt)
{
    SqlConnection sqlConn = new SqlConnection(
        ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString);
    SqlBulkCopy bulkCopy = new SqlBulkCopy(sqlConn);
    bulkCopy.DestinationTableName = "BulkTestTable";
    bulkCopy.BatchSize = dt.Rows.Count;

    try
    {
        sqlConn.Open();
    if (dt != null && dt.Rows.Count != 0)
        bulkCopy.WriteToServer(dt);
    }
    catch (Exception ex)
    {
        throw ex;
    }
    finally
    {
        sqlConn.Close();
        if (bulkCopy != null)
            bulkCopy.Close();
    }
}

public static DataTable GetTableSchema()
{
    DataTable dt = new DataTable();
    dt.Columns.AddRange(new DataColumn[]{
        new DataColumn("Id",typeof(int)),
        new DataColumn("UserName",typeof(string)),
    new DataColumn("Pwd",typeof(string))});

    return dt;
}

static void Main(string[] args)
{
    Stopwatch sw = new Stopwatch();
    for (int multiply = 0; multiply < 10; multiply++)
    {
        DataTable dt = Bulk.GetTableSchema();
        for (int count = multiply * 100000; count < (multiply + 1) * 100000; count++)
        {
            DataRow r = dt.NewRow();
            r[0] = count;
            r[1] = string.Format("User-{0}", count * multiply);
            r[2] = string.Format("Pwd-{0}", count * multiply);
            dt.Rows.Add(r);
        }
        sw.Start();
        Bulk.BulkToDB(dt);
        sw.Stop();
        Console.WriteLine(string.Format("Elapsed Time is {0} Milliseconds", sw.ElapsedMilliseconds));
    }

    Console.ReadLine();
}