c# - 使用 OLEDB 从文本框插入

Question

我在尝试使用OLEDB Connection.

strSQL = "INSERT INTO test_table (username,password) " +
"VALUES (@user,@pass)";

objCmd = new OleDbCommand(strSQL, objConnection);
objCmd.Parameters.Add("@user", OleDbType.VarChar, 255).Value =TextBox1.Text.Trim();

objCmd.Parameters.Add("@pass", OleDbType.VarChar, 255).Value= TextBox2.Text.Trim();

// execute the command
objCmd.ExecuteNonQuery();

objConnection.Close();
Label1.Text = "Command run";    

错误是

异常详细信息：System.Data.OleDb.OleDbException：处理命令期间发生一个或多个错误。ORA-00936: 缺少表达式

Answer 1

我相信你错过了VALUES朋友之间的空间。)在下面的示例中，我在字段列表中为您添加了一个。

strSQL = "INSERT INTO test_table (username,password) " +
"VALUES (@user,@pass)";

Answer 2

尝试像这样设置参数：-

objConnection = new OleDbConnection(strConnection);
objConnection.ConnectionString = strConnection;

objConnection.Open();



// set the SQL string
strSQL = "INSERT INTO test_table (username,password) " +
"VALUES (@user,@pass)";
// Create the Command and set its properties
objCmd = new OleDbCommand(strSQL, objConnection);

objCmd.Parameters.AddWithValue("@user", TextBox1.Text);

objCmd.Parameters.AddWithValue("@pass", TextBox2.Text);

// execute the command
objCmd.ExecuteNonQuery();

objConnection.Close();

Answer 3

尝试这个 ：

strSQL = "INSERT INTO test_table (username,password)" + "VALUES (?,?)";

使用 OleDb 您需要输入“？” 而不是@param 作为参数