Access 데이터베이스로 데이터를 보내는 동안 오류가 발생했습니다.

Nov 30 2020

Access 데이터베이스에 코드를 보내려고 할 때이 예외가 발생합니다.

System.Data.OleDb.OleDbException (0x80040E07) : 선택 조건 식에서 데이터 형식이 일치하지 않습니다.

System.Data.OleDb.OleDbCommand.ExecuteCommandTextErrorHandling (OleDbHResult의 시간)에서
System.Data.OleDb.OleDbCommand.ExecuteCommandTextForSingleResult에서 (tagDBPARAMS dbParams 개체 및 executeResult)
System.Data.OleDb.OleDbCommand.ExecuteCommandText에서 (개체 및 executeResult)
System.Data에서. OleDb.OleDbCommand.ExecuteCommand (CommandBehavior behavior, Object & executeResult)
at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal (CommandBehavior behavior, String method)
at System.Data.OleDb.OleDbCommand.ExecuteNonQuery ()
at KPIZ.Form2.btn_save_Click (Object sender) , EventArgs e) C : \ Users \ booku \ source \ repos \ KPIZ \ KPIZ \ Form2.cs : line 110

내 코드 :

private void btn_save_Click(object sender, EventArgs e)
{
        try
        {
            byte[] imageBt = null;
            FileStream fstream = new FileStream(this.textBox2.Text, FileMode.Open, FileAccess.Read);
            BinaryReader br = new BinaryReader(fstream);
            imageBt = br.ReadBytes((int)fstream.Length);

            connection.Open();

            OleDbCommand command = new OleDbCommand();
            command.Connection = connection;
            command.CommandText = @"INSERT INTO [SportInfo]([ID],[FirstName],[LastName],[DOB],[Sport],[DIW],[Image])" + "VALUES(@id, @Fn, @Ln, @Date, @Sports, @days ,@IMG)";
            
            command.Parameters.Add(new OleDbParameter("@Fn", Convert.ToString(txt_fname.Text)));
            command.Parameters.Add(new OleDbParameter("@Ln", Convert.ToString(txt_lname.Text)));
            command.Parameters.Add(new OleDbParameter("@Date", Convert.ToString(mtxt_dob.Text)));
            command.Parameters.Add(new OleDbParameter("@Sports", Convert.ToString(txt_sport.Text)));
            command.Parameters.Add(new OleDbParameter("@days", Convert.ToInt32(nmc_diw.Text)));
            command.Parameters.Add(new OleDbParameter("@id", Convert.ToInt32(txt_id.Text)));
            command.Parameters.Add(new OleDbParameter("@IMG", imageBt));

            command.ExecuteNonQuery();

            MessageBox.Show("Data Saved");
            connection.Close();
        }
        catch (Exception ex)
        {
            MessageBox.Show("Unlucky  " + ex);
            connection.Close();
        }

        try
        {
            connection.Open();
            OleDbCommand command = new OleDbCommand();
            command.Connection = connection;
            string query = "select ID,LastName,FirstName,DOB,Sport,DIW, from SportInfo ";
            command.CommandText = query;

            OleDbDataAdapter da = new OleDbDataAdapter(command);
            dt = new DataTable();
            da.Fill(dt);
            dataGridView1.DataSource = dt;

            connection.Close();
        }
}

답변

3 ErikA Nov 30 2020 at 13:41

OLEDB 매개 변수는 항상 위치 적입니다. 이는 쿼리의 매개 변수 순서가 코드에 추가 될 때 매개 변수의 순서와 일치해야 함을 의미합니다.