将数据添加到mysql表时获取空白错误异常消息

Question

the code below is self explanatory. I have 16 input sources(textboxes , comboboxes,etc) on a form and I want all those inputs to go into a mysql table I created , called submissiontable. I have only pasted the parts necessary and not the whole 550 lines of code

public partial class Form1 : System.Windows.Forms.Form
{
     static string conString = "Server=localhost;Database=Work;uid=root;Pwd=password";
     MySqlConnection mson = new MySqlConnection(conString);
     MySqlCommand mcd;
     MySqlDataAdapter adapter;
     MySqlDataReader rdr;
     DataTable dt = new DataTable();

     private void btn_submit_Click(object sender, EventArgs e)
     {
          if (checkBox1.Checked)
          {
               submit(txt_empid.ToString(), txt_empname.ToString(), txt_mgrid.ToString(), txt_mgrname.ToString(), txt_phno.ToString(), txt_emailid.ToString(), txt_dept.ToString(), txt_circle.ToString(), txt_rqst_type.ToString(), txt_pol_period.ToString(), txt_bj.ToString(), txt_chngtype.ToString(), txt_sod.ToString(), txt_destapp.ToString());
          }
          else
                    MessageBox.Show("Agree the terms and conditions");
      }

     //Submit
     private void submit(string empid, string empname, string mgrid, string mgrname, string empph, string empmail, string empdept, string empcircle, string rqsttype, string polperiod, string busjur, string chngtype, string sodno, string destapp )
     {
          //sql stmt

          string submitdb = "INSERT INTO submissiontable(empid,empname,mgrid,mgrname,empph,empmail,empdept,empcirlce,rqsttype,polperiod,buisinessjuris,chngtype,sodno,destapp) VALUES(@eid,@enam,@mgid,@mgnam,@ephone,@email,@edept,@ecirc,@reqtyp,@polprd,@busjur,@chtype,@sodno,@dapp)";
          mcd = new MySqlCommand(submitdb, mson);
                 mcd.Parameters.AddWithValue("@eid", empid);
                 mcd.Parameters.AddWithValue("@enam", empname);
                 mcd.Parameters.AddWithValue("@mgid", mgrid);
                 mcd.Parameters.AddWithValue("@mgnam", mgrname);
                 mcd.Parameters.AddWithValue("@ephone", empph);
                 mcd.Parameters.AddWithValue("@email", empmail);
                 mcd.Parameters.AddWithValue("@edept", empdept);
                 mcd.Parameters.AddWithValue("@ecirc", empcircle);
                 mcd.Parameters.AddWithValue("@reqtyp", rqsttype);
                 mcd.Parameters.AddWithValue("@polprd", polperiod);
                 mcd.Parameters.AddWithValue("@busjur", busjur);
                 mcd.Parameters.AddWithValue("@chtype", chngtype);
                 mcd.Parameters.AddWithValue("@sodno", sodno);
                 mcd.Parameters.AddWithValue("@dapp", destapp);
          //OPEN MSON[CON] AND EXEC INSERT
          try
          {
                mson.Open();
                if (mcd.ExecuteNonQuery() > 0)
                {

                        MessageBox.Show("Submitted Successfully");
                }
                mson.Close();
          }
          catch (Exception ex)
          {
                    MessageBox.Show(ex.Message);
                    MessageBox.Show("test");
                    mson.Close();
          }
      }

screenshot of db: Create query , as requested :

CREATE TABLE `submissiontable` (
  `ID` int(11) NOT NULL AUTO_INCREMENT,
  `empid` varchar(20) DEFAULT NULL,
  `empname` varchar(20) DEFAULT NULL,
  `mgrid` varchar(20) DEFAULT NULL,
  `mgrname` varchar(20) DEFAULT NULL,
  `empph` varchar(20) DEFAULT NULL,
  `empmail` varchar(20) DEFAULT NULL,
  `empdept` varchar(20) DEFAULT NULL,
  `empcircle` varchar(20) DEFAULT NULL,
  `rqsttype` varchar(20) DEFAULT NULL,
  `polperiod` varchar(20) DEFAULT NULL,
  `buisinessjuris` varchar(50) DEFAULT NULL,
  `chngtype` varchar(20) DEFAULT NULL,
  `sodno` varchar(20) DEFAULT NULL,
  `destapp` varchar(20) DEFAULT NULL,
  PRIMARY KEY (`ID`),

) ENGINE=InnoDB DEFAULT CHARSET=utf8

Why does the insert operation not work? I placed a messagebox in the catch section to confirm that the error is in the try section [as a messagebox with test popped up]

Answer 1

Well, MySQL error 1054 stands for unknown column. It means that in your insert statement you used a column name that does not exists in your table. The error message itself will tell you more details about which column name may cause the error. Interpret the error message and fix the column name issue.

Based on spelling, I think buisinessjuris is a good candidate for a typo issue.

Answer 2

The error 1054 for sql is basically unknown column . So kindly check if all the columns mentioned in your INSERT query are also there in your table "submissiontable".

If they are there kindly get back to me with the create query of your table .

Thank you

Thankyou for posting your db

if the id column in your db is not auto generated ..you will have to specify its value in the insert query as it cannot be null according to your db

Column name empcircle is different in insert query .. change it from empcirlce to empcircle