从c＃插入毫秒到mysql

Question

I am trying to insert millisecond into data type of datetime(6) in MySQL using c#.

here is my code:

 MySqlCommand myCommand4 = new MySqlCommand("Insert into Test_OrderRecord values('" + OrderID + "','" + customerCode + "','" + customer + "','" + TelComboBox.Text + "','" + LicenseComboBox.Text + "','" +
                          DriverComboBox.Text + "','" + AddressComboBox.Text + "','" + LocationTypeComboBox.Text + "','" + PickupComboBox.Text + "','" + CustomerTypeLabel.Text + "','" +
                       Convert.ToDecimal(TotalPriceLabel.Text) + "','" + status + "','" + note + "','" + sandReceiptNo + "','" + createtiming + "','" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "')", myConnection);
                    myCommand4.ExecuteNonQuery();

the createtiming is created with

createtiming = OrderDateTimePicker.Value.ToString("yyyy-MM-dd HH:mm:ss:ffffff");

I have read the value of createtiming before it inserts into MySQL, and it does contain milliseconds, however, when I do

SELECT * FROM SaveFundDevelopmentDB.Test_OrderDetails

on MySQL, I only see time like

2015-08-27 15:33:04.000000 

While the time should be like 2015-08-27 15:33:04.123456 something like this.

I am trying to Order the table by using this createtiming to the very millisecond.

How should I get this done?

Answer 1

check out this tutorial with parameterized queries.
1. Ceate a command object :

MySqlCommand cmd = new MySqlCommand();

2. Set the command text with parameters similar to one in the tutorial.

3. Define a parameter :
   MySqlParameter dt = new MySqlParameter(); dt.ParameterName = "@createTiming"; dt.MySqlDbType = MySqlDbType.DateTime;<br> dt.Value = "2015-08-27 15:33:04.123456";<br> cmd.Parameters.Add(dt);
   

4. Call cmd.ExecuteNonQuery();