使用 C# 和 ms-access 的 INSERT INTO 语句中的语法错误

Question

我无法弄清楚我的代码有什么问题。我试图通过 C# 在我的 Access Db 中添加一条记录，但遇到了一个异常，该异常表明我的 SQL 语句中有错误的语法。

 private void buttonSUB_Click(object sender, EventArgs e)
    {
        string Adrs = textADRS.Text;
        string Fname = textFN.Text;
        string Mname = textMN.Text;
        string Lname = textLN.Text;
        string Pos = textPOS.Text;

        try
        {

            OleDbConnection con = new OleDbConnection();
            con.ConnectionString = @"Provider = Microsoft.ACE.OLEDB.12.0; Data Source = C:\Users\genesis\Documents\Database1.accdb";
            OleDbCommand cmd = new OleDbCommand("Insert into Employees (FN,MN,LN,Address,Position) Values (@FirstName,@MidName,@LastName,@Address,@Position)",con);
            cmd.Parameters.Add(new OleDbParameter("@FirstName", Fname));
            cmd.Parameters.Add(new OleDbParameter("@MidName", Mname));
            cmd.Parameters.Add(new OleDbParameter("@LastName", Lname));
            cmd.Parameters.Add(new OleDbParameter("@Address", Adrs));
            cmd.Parameters.Add(new OleDbParameter("@Position", Pos));
            con.Open();
            cmd.ExecuteNonQuery();
            MessageBox.Show("Record Submitted", "Nice!");
            con.Close();
        }

        catch (Exception ex) {
            MessageBox.Show(ex.Message);
        }



    }

Answer 1

试试这样的：

cmd.Parameters.Add(new OleDbParameter("@FirstName","'" + Fname "'"));

带有字符串参数的单个代码。

Answer 2

从 Access SQL Reserved Words List 开始，POSITION 已定义为保留关键字。

If you use a reserved word or symbol to name a field in a table, Access warns you that the word is reserved and that you might encounter errors when referring to the field. You might also encounter errors if you use a reserved word to name a control, an object, or a variable.

If a reserved word is already in use, you can avoid error messages by surrounding each occurrence of the word with brackets ([ ]).

因此，您需要添加方括号才能将其用作 table 名称：

OleDbCommand cmd = new OleDbCommand(
                 @"INSERT INTO Employees (FN, MN, LN, Address, [Position]) 
                   VALUES (@FirstName, @MidName, @LastName, @Address, @Position)", con);

注意：保留字在 Access 用法中不区分大小写，因此每次使用保留字的地方都必须放在方括号内。

使用 C# 和 ms-access 的 INSERT INTO 语句中的语法错误

Syntax error in INSERT INTO statement using C# with ms-access

c#

ms-access

sqlexception

syntax-error

sql-insert