'Full_Name'附近的语法不正确

我希望你可以帮忙，我试图更新我的数据库文件，但我一直在收到错误，但我不确定为什么，添加数据或显示时没有任何问题数据只是更新数据，我遇到了什么问题？'Full_Name'附近的语法不正确

的错误是：

System.Data.SqlClient.SqlException (0x80131904): Incorrect syntax near 'Full_Name'.

这是我的源代码：

public void UpdateTable() 
{ 
    try 
    { 
     string ID = Txt_IdNumber.Text;//ID Input 
     string setYearFormat = Tdp_DateOfBirth.Value.ToString("yyyy");//Get only the year to calculate age 
     string CurrentYear = DateTime.Now.Year.ToString();//Get current year from system settings 
     int getAge = Convert.ToInt32(CurrentYear) - Convert.ToInt32(setYearFormat);//Calculate Age 
     string setDOB = Tdp_DateOfBirth.Value.ToString("dd/MM/yyyy");//Set TimeDatePicker to spesific Long date 
     string Query = "UPDATE UserData" + 
         "SET Full_Name = @Fullname, Date_Of_Birth = @DateOfBirth, ID_Number = @IdNumber, Age = @Age" + 
         "WHERE Id = @Id";//Update query 
     using (SqlConnection Connection = new SqlConnection(ConnectionString))//Connection to ConnectionString 
     using (SqlCommand Command = new SqlCommand(Query, Connection))//Sql Command to add/Update 
     { 
      Connection.Open();//Open Connection 
      Command.Parameters.AddWithValue("@Id", Dgv_Output.SelectedRows);//Add Values 
      Command.Parameters.AddWithValue("@Fullname", Txt_Fullname.Text);//Add Values 
      Command.Parameters.AddWithValue("@DateOfBirth", Convert.ToDateTime(setDOB));//Add Values 
      Command.Parameters.AddWithValue("@IdNumber", ID);//Add Values 
      Command.Parameters.AddWithValue("@Age", getAge);//Add Values 
      Command.ExecuteNonQuery();//Execute Non Query 
     } 

     Txt_Fullname.Clear();//Clear Textbox 
     Txt_IdNumber.Clear();//Clear Textbox 
     Tdp_DateOfBirth.Value = DateTime.Now;//Set TimeDatePicker to system date 
     Txt_Fullname.Focus();//Focus on Full Name textbox 
    } 
    catch (Exception Err) 
    { 
     MessageBox.Show(Err.ToString(), "ERROR"); 
     using (StreamWriter sr = new StreamWriter("UpdateError.txt"))//Write error to file 
     { 
      sr.Flush();//Flush existing data 
      sr.WriteLine(Err);//Write new data 
     } 
    } 
}

来源

2017-05-28 Christiaan

如果您打印出SQL，问题就会很明显。您在SQL语句中缺少需要的空间。 –

你缺少一个空白的set和where条款之前：

string Query = "UPDATE UserData " + 
       // Was missing--^ 
       "SET Full_Name = @Fullname, Date_Of_Birth = @DateOfBirth, ID_Number = @IdNumber, Age = @Age " + 
       // Here Too--------------------------------------------------------------------------------^ 
       "WHERE Id = @Id";//Update query

来源

2017-05-28 16:58:25 Mureinik

你”必须用单引号括住@Full_Name：

'@Full_Name'

来源

2017-05-31 15:08:56

'Full_Name'附近的语法不正确

回答

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