MSSQL資料批量插入優化詳細
阿新 • • 發佈:2019-01-07
public void ThirdWay()
{
Stopwatch sw = new Stopwatch();
Stopwatch sw1 = new Stopwatch();
DataTable dt = GetTable();
using (var conn = new SqlConnection(ConnStr))
{
string sql = @"INSERT INTO[dbo].[CustomerFeedback]
([BusType]
,[CustomerPhone]
,[BackType]
,[Content]
) select BusType,CustomerPhone,BackType,[Content] from @TempTb ";
using (SqlCommand cmd = new SqlCommand(sql, conn))
{
cmd.CommandTimeout = 0;
SqlParameter catParam = cmd.Parameters.AddWithValue("@TempTb", dt);
catParam.SqlDbType = SqlDbType.Structured;
catParam.TypeName = "dbo.CustomerFeedbackTemp";
conn.Open();
Console.WriteLine("從:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fff") + "開始迴圈插入記憶體表中:" + cnt + "條資料 ...");
sw.Start();
for (int i = 0; i < cnt; i++)
{
DataRow dr = dt.NewRow();
dr[0] = m.BusType;
dr[1] = m.CustomerPhone;
dr[2] = m.BackType;
dr[3] = m.Content;
dt.Rows.Add(dr);
}
Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fff") + "時,迴圈插入記憶體表:" + cnt + "條資料完成 ! 耗時:" + sw.ElapsedMilliseconds + "毫秒。");
sw1.Start();
if (dt != null && dt.Rows.Count != 0)
{
cmd.ExecuteNonQuery();
sw.Stop();
}
Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss fff") + "時,執行:" + cnt + "條資料的datatable的資料進資料庫 ! 耗時:" + sw1.ElapsedMilliseconds + "毫秒。");
}
}
}