1) insert循環插入; 2) sqldataadapter.update(dataset,tablename); 3) sqlbulkcopy.WriteToServer(datatable);
1、生成測試的datatable表,表結構如下: UniqueID(主鍵,自動增長) | CompanyName | CompanyCode | Address | Owner | Memo 共6個字段。
- SqlConnection sqlconnection = new SqlConnection(connectionString);
- SqlDataAdapter sqldataadapter = new SqlDataAdapter("select * from Table_1 where 1=2", sqlconnection);
- DataSet dataset = new DataSet();
- sqldataadapter.Fill(dataset, "Table_1");
- DataTable datatable = dataset.Tables[0];
- //生成20000條記錄
- for (int i = 0; i < 20000; i++)
- {
- DataRow datarow = datatable.NewRow();
- datarow["CompanyName"] = "companyname"+string.Format("{0:0000}",i);
- datarow["CompanyCode"] = "companycode" + string.Format("{0:0000}", i);
- datarow["Address"] = "address" + string.Format("{0:0000}", i);
- datarow["Owner"] = "owner" + string.Format("{0:0000}", i);
- datarow["Memo"] = "memo" + string.Format("{0:0000}", i);
- datatable.Rows.Add(datarow);
- }
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2、使用sqlcommand.executenonquery()方法插入
- foreach (DataRow datarow in datatable.Rows)
- {
- string sql = "INSERT INTO [Table_1]([CompanyName],[CompanyCode],[Address],[Owner],
- )" +
- "VALUES('" + datarow["CompanyName"].ToString() + "'" +
- ",'" + datarow["CompanyCode"].ToString() + "'" +
- ",'" + datarow["Address"].ToString() + "'" +
- ",'" + datarow["Owner"].ToString() + "'" +
- ",'" + datarow["Memo"].ToString() + "')";
- using (SqlConnection sqlconn = new SqlConnection(connectionString))
- {
- sqlconn.Open(); SqlCommand sqlcommand = new SqlCommand(sql, sqlconn);
- sqlcommand.ExecuteNonQuery();
- sqlconn.Close();
- }
- }
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插入20000條記錄時間:00:00:29.7336000
3、使用sqldataadapter.update(dataset,tablename);
- SqlCommand insertcommand = new SqlCommand("INSERT INTO [Table_1]([CompanyName],[CompanyCode],[Address],[Owner],
- )" +
- "VALUES(@CompanyName, @CompanyCode,@Address,@Owner,@Memo)",new SqlConnection(connectionString));
- insertcommand.Parameters.Add("@CompanyName", SqlDbType.NChar, 50, "CompanyName");
- insertcommand.Parameters.Add("@CompanyCode", SqlDbType.NChar, 25, "CompanyCode");
- insertcommand.Parameters.Add("@Address", SqlDbType.NChar, 255, "Address");
- insertcommand.Parameters.Add("@Owner", SqlDbType.NChar, 25, "Owner");
- insertcommand.Parameters.Add("@Memo", SqlDbType.NChar, 255, "Memo");
- sqldataadapter.InsertCommand = insertcommand;
- sqldataadapter.Update(dataset, "Table_1");
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插入20000條記錄時間:00:00:22.8938000
4、使用sqlbulkcopy.writetoserver(datatable)
- SqlBulkCopy sqlbulkcopy = new SqlBulkCopy(connectionString, SqlBulkCopyOptions.UseInternalTransaction);
- sqlbulkcopy.DestinationTableName = "Table_1";//數據庫中的表名
- sqlbulkcopy.WriteToServer(dataset.Tables[0]);
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插入20000條記錄時間:00:00:00.3276000
所以說速度是sqlbulkcopy最快,sqldataadapter.update()次之,sqlcommand.ExecuteNonQuery()最慢。 |