C#分析查询令牌行编号1时出错

C#分析查询令牌行编号1时出错,c#,sql,sql-server-ce,C#,Sql,Sql Server Ce,C#分析查询令牌行编号1时出错 cmmd.CommandText = "Select total from Dept_Sales where department ='" + department + "'"; var dtotal = cmmd.ExecuteScalar().ToString(); var nntotal = dtotal + price; SqlCeCommand cmmmmd = new SqlCeCommand("update

C#分析查询令牌行编号1时出错

     cmmd.CommandText = "Select total from Dept_Sales where department ='" + department + "'";
     var dtotal = cmmd.ExecuteScalar().ToString();
     var nntotal = dtotal + price;

     SqlCeCommand cmmmmd = new SqlCeCommand("update [Dept_Sales] SET [total]=@val1) where [department]=@val2", conn);
     {
     cmmmmd.Parameters.AddWithValue("@val1", nntotal);
     cmmmmd.Parameters.AddWithValue("@val2", department);
     cmmmmd.CommandType = System.Data.CommandType.Text;
     cmmmmd.ExecuteNonQuery()           }
     }
     catch (Exception ex)
     {
     MessageBox.Show(ex.Message);
     }
     also dtotal =3.51
     and price = 3.51
     nntotal = 7.02
我想我的查询可能有问题,我已经更改了15次相同的错误,有人能给我一些建议吗?

从第4行删除外部
。所以应该是这样的:

SqlCeCommand cmmmmd = 
    new SqlCeCommand("update [Dept_Sales] SET [total]=@val1 
                      where [department]=@val2", conn);
从第4行删除extera
。所以应该是这样的:

SqlCeCommand cmmmmd = 
    new SqlCeCommand("update [Dept_Sales] SET [total]=@val1 
                      where [department]=@val2", conn);

不匹配的右括号:

[total]=@val1)
            ^^^

不匹配的右括号:

[total]=@val1)
            ^^^