Question

我曾尝试在MS访问数据库中插入数据，但未在数据库中添加数据且未给出错误。

  private void btnsubmit_Click(object sender, EventArgs e)
    {

        int row = dataGridView1.RowCount;
        for (int i = 0; i < row - 1; i++)
        {
            String str = "INSERT INTO JDS_Data(job_no,order_no,Revision,DesignSpec,Engine_Type,Record_date,LE_IN_Designer,CPH_Designer,Exp_Del_Week,Action_code,Rev_Description,Ref_pattern,Name_of_mock_up,EPC_Drawing,Turbocharger_no_Type,Engine_Specific_Requirement,Draft_sketch_with_details,Air_cooler_type,Description_of_Job,SF_No,Standard,Prority_Sequence,Remark,Part_family,Modified_Date,User)  values('" + txtjobno.Text + "','" + txtorderno.Text + "','" + txtrevison.Text + "','" + txtds.Text + "','" + txtenginetype.Text + "','" + dateTimePicker1.Text + "','" + txtleindesigner.Text + "','" + txtcphdesigner.Text + "','" + txtexpweek.Text + "','" + txtactioncode.Text + "','" + txtrevdescription.Text + "','" + txtrefpatern.Text + "','" + txtmockup.Text + "','" + txtepcdwg.Text + "','" + txtturbono.Text + "','" + txtenginereq.Text + "','" + txtdraft.Text + "','" + txtaircolertype.Text + "','" + txtdespjob.Text + "','" + dataGridView1.Rows[i].Cells[0].Value.ToString() + "','" + dataGridView1.Rows[i].Cells[1].Value.ToString() + "','" + dataGridView1.Rows[i].Cells[2].Value.ToString() + "','" + txtremark.Text + "','" + dataGridView1.Rows[i].Cells[3].Value.ToString() + "','" + DateTime.Today + "','" + mdlconnection.user_name + "')";

            int dd = mdlconnection.excuteQuery(str);
            MessageBox.Show(str);
            //if (dd > 0)
            {
                MessageBox.Show("Data Saved Successfully..!!!");

            }

        }

    }

Answer 1

可能你的语法不正确。使用字符串连接构造查询总是一个坏主意。使用带有内置参数值的参数化查询字符串，通过OdbcCommand.Parameters.Add(...)处理。

Answer 2

嘿，您的查询在行下面有Syntax错误

String str = "INSERT INTO JOB_Quality_Rating(Team,JOB_Type,Designer_Name,AUR_NO,Task_No,Sub_Function_no,Severity_Level,Checkpoints,Points_Deducted,Total_Points,Submitted_By,Submitted_Date) values('" + comboBox1.SelectedItem + "','"+comboBox7.SelectedItem+"','" + comboBox3.SelectedItem + "','" + comboBox6.SelectedItem + "','" + cmbtaskno.SelectedItem + "','" + comboBox2.SelectedItem + "','" + dataGridView1.Rows[i].Cells[0].Value.ToString() + "','" + dataGridView1.Rows[i].Cells[1].Value.ToString() + "','" + dataGridView1.Rows[i].Cells[2].Value.ToString() + "','" + txtTotal.Text + "','" + mdlconnection.user_name + "','" + dateTimePicker1.Text + "')";

而不是

String str = "INSERT INTO JOB_Quality_Rating(Team,JOB_Type,Designer_Name,AUR_NO,Task_No,Sub_Function_no,Severity_Level,Checkpoints,Points_Deducted,Total_Points,Submitted_By,Submitted_Date) values('" + comboBox1.SelectedItem + "',,'"+comboBox7.SelectedItem+"','" + comboBox3.SelectedItem + "','" + comboBox6.SelectedItem + "','" + cmbtaskno.SelectedItem + "','" + comboBox2.SelectedItem + "','" + dataGridView1.Rows[i].Cells[0].Value.ToString() + "','" + dataGridView1.Rows[i].Cells[1].Value.ToString() + "','" + dataGridView1.Rows[i].Cells[2].Value.ToString() + "','" + txtTotal.Text + "','" + mdlconnection.user_name + "','" + dateTimePicker1.Text + "')";

希望它有所帮助。

Answer 3

cyberj0g是对的，你的语法不正确。特别是，您的值列表中缺少值：...comboBox1.SelectedItem + "',,'"+comboBox7.SelectedItem...。您不能以这种方式传递空值。在此处传递NULL或从字段列表子句中删除相应的字段：...Team,Designer_Name...（以及额外的逗号或课程）。

Answer 4

您可以尝试以下方法 - - 尝试在访问中手动执行查询字符串（str变量中形成的内容），以确保语法中没有错误并在成功执行 - 在try..catch块中包装执行语句以获取错误详细信息 - 确保连接指向正确的数据库实例

无法使用c＃windows应用程序在MS Access数据库中插入数据

4 个答案: