Question

我在行

上收到错误

cmd.ExecuteNonQuery();

说

INSERT INTO语句中的语法错误

我认为我的查询应该有效，我不明白这个问题，而且我已经工作了好几个小时。它按照正确的顺序排列[] Users对我不起作用，非常感谢帮助。

<%@ Page Language ="C#" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDb" %>   
    <script runat="server">
    protected void Page_Load()
    {

            String username = Request.Form["username"];
            String email = Request.Form["email"];
            String password = Request.Form["password1"];
            var age = Request.Form["age"];
            String country = Request.Form["country"];
            String hobbie = Request.Form["skin"];
            String sql;

            sql = "INSERT INTO Users(UserName, Email, Password, Age, Country, Hobbie) VALUES('" + username + "','" + email + "','" + password + "'," + age + ",'" + country + "','" + skin + "')";

            String Path = Server.MapPath("App_Data/Users.accdb");
            String connStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source="+Path;

            OleDbConnection conn = new OleDbConnection(connStr);
            conn.Open();

            OleDbCommand cmd = new OleDbCommand(sql, conn);
            cmd.ExecuteNonQuery();

            conn.Close();
    }

Answer 1

PASSWORD是MS-Access的保留关键字。用方括号括起来

    sql = "INSERT INTO Users(UserName, Email, [Password] ....

但请更改该sql文本以使用参数化查询。此外，如果您能够使用实际值发送此命令，则查询仍然对Sql Injection漏洞开放，并且当您的输入字符串包含单引号时可能会出现解析问题

   sql = @"INSERT INTO Users(UserName, Email, [Password], Age, Country, Hobbie) 
           VALUES(?,?,?,?,?,?)";
   ....

   OleDbCommand cmd = new OleDbCommand(sql, conn);
   cmd.Parameters.AddWithValue("@p1", username);
   .... and so on for the other 5 parameters required by the query ....

Answer 2

我认为密码是一个保留字。使用[密码]

试试这个

sql = "INSERT INTO Users(UserName,Email,[Password],Age,Country,Hobbie) VALUES('" + username + "','" + email + "','" + password + "'," + age + ",'" + country + "','" + skin + "')";

这不推荐。使用参数化查询。如下所示：

 sql = "INSERT INTO Users(UserName, Email, [Password], Age, Country, Hobbie) 
           VALUES(@UserName,@Email,@Password,@Age,@Country,@Hobbie)";

   OleDbCommand cmd = new OleDbCommand(sql, conn);
   cmd.Connection = conn;
   cmd.CommandType = CommandType.Text;   
   cmd.Parameters.AddWithValue("@UserName", username);
   cmd.Parameters.AddWithValue("@Email", Email);
   cmd.Parameters.AddWithValue("@Password", Password);
   cmd.Parameters.AddWithValue("@Age", Age);
   cmd.Parameters.AddWithValue("@Country", Country);
   cmd.Parameters.AddWithValue("@Hobbie", Hobbie);

Answer 3

使用[密码]代替密码

使用C＃和asp.net将sql插入到访问数据库中时出现语法错误

3 个答案: