Question

我正在尝试使用ExecuteNonQuery（）更新数据库中的某些字段。

尝试更新时，我没有收到任何错误或警告，它会返回一个受影响的行数。

问题是，我只能针对当前请求，请参阅更改。如果我重新加载页面或通过SMSS，则更改不会显示在数据库中。

他有点代码。

    string Sql = "UPDATE AccessUser SET [" + Field + "] = '" + Database.SqlEscapeInjection(Value) + "' WHERE AccessUserID = " + User.ID;
    Response.Write("<br>" + Sql + "<br>");

    IDataReader Se = Database.CreateDataReader("SELECT * FROM AccessUser WHERE AccessUserID = " + User.ID);
    while (Se.Read())
    {
        Response.Write((string)Se[Field] + "<br>");
    }

    int affectedrows = Database.ExecuteNonQuery(Sql, Database.CreateConnection());

    Response.Write("<br>NUMMER: " + affectedrows + "<br>");
    IDataReader S = Database.CreateDataReader("SELECT * FROM AccessUser WHERE AccessUserID = " + User.ID);
   while (S.Read())
   {
       Response.Write((string)S[Field] + "<br>");
   }

如您所见，我首先输出当前值，之后我运行更新查询，然后再次输出该值。（必须通知你，我通常使用绑定参数，但为了调试我扔掉了它们并做了这个。）

结果如下：乔纳斯 NUMMER：1 的Mikkel

当我刷新页面或查看数据库时，行没有改变。该怎么办？：d

编辑：系统“Dynamicweb-CMS”的文档说明它不是事务性的： http://developer.dynamicweb-cms.com/api8/Dynamicweb~Dynamicweb.Database~ExecuteNonQuery(String,IDbConnection,IDbTransaction).html 而且我应该能够做到，就像我实际做的那样。奇怪的东西。

编辑2：为了取悦具有“绑定参数OCD”的人

    using (IDbConnection connection = Database.CreateConnection())
    {
        IDbCommand command = connection.CreateCommand();
        command.CommandText = "UPDATE AccessUser SET [" + Field + "] = @ParamValue WHERE AccessUserID = @UserId";
        Database.AddStringParam(command, "@ParamValue", Value);
        Database.AddInt32Param(command, "@UserId", User.ID);

        //Execute command
        command.ExecuteNonQuery();
        connection.Close();
    }

与其他查询方法的结果相同。

也试过这个。没有任何事情发生。

   using (SqlConnection cn = new SqlConnection(SQLString))
        {
            SqlTransaction Trans;
            try
            {

                cn.Open();
                Trans = cn.BeginTransaction();
                IDbCommand command = cn.CreateCommand();
                command.Transaction = Trans;
                command.CommandText = "UPDATE AccessUser SET [" + Field + "] = @ParamValue WHERE AccessUserID = @UserId";
                Database.AddStringParam(command, "@ParamValue", Value);
                Database.AddInt32Param(command, "@UserId", User.ID);

                //Execute command
                int affectedRecords = command.ExecuteNonQuery();
                Response.Write("<br>NUMMER: " + affectedRecords + "<br>");
                Response.Write(cn.ServerVersion );
                Trans.Commit();
                cn.Close();
            }
            catch (Exception e)
            {
                Response.Write("<span style='color:red;'>" + e.Message + "</span>");
            }
        };

我运行了探查器并查看了更新语句。在更新语句之后，发送以下内容

Audit Login:
-- network protocol: LPC
set quoted_identifier on
set arithabort off
set numeric_roundabort off
set ansi_warnings on
set ansi_padding on
set ansi_nulls on
set concat_null_yields_null on
set cursor_close_on_commit off
set implicit_transactions off
set language us_english
set dateformat mdy
set datefirst 7
set transaction isolation level read committed

在我的逻辑中，告诉我改变已经提交。然而，现在，之后，我得到了这个（不得不削减它，Stackoverflow不喜欢它）

RPC:Completed:
exec sp_executesql N'UPDATE [AccessUser] SET [AccessUserUpdatedOn] = @p1 WHERE (([AccessUserID] = @p2) AND ((@p3 = 1 AND [AccessUserParentID] IS NULL) OR ([AccessUserParentID] = @p4)) AND ((@p5 = 1 AND [AccessUserUserName] IS NULL) OR ([AccessUserUserName] = @p6)) AND ((@p7 = 1 AND [AccessUserPassword] IS NULL) OR ([AccessUserPassword] = @p8)) AND ((@p9 = 1 AND [AccessUserName] IS NULL) OR ([AccessUserName] = @p10)) AND ((@p11 = 1 AND [AccessUserDepartment] IS NULL) OR ([AccessUserDepartment] = @p12)) AND ((@p13 = 1 AND [AccessUserEmail] IS NULL) OR ([AccessUserEmail] = @p14)) AND ((@p15 = 1 AND [AccessUserPhone] IS NULL) OR ([AccessUserPhone] = @p16)) AND ((@p17 = 1 AND [AccessUserFax] IS NULL) OR ([AccessUserFax] = @p18)) AND ((@p19 = 1 AND [AccessUserGroups] IS NULL) OR ([AccessUserGroups] = @p20)) AND ((@p21 = 1 AND [AccessUserType] IS NULL) OR ([AccessUserType] = @p22)) AND ((@p23 = 1 AND [AccessUserValidFrom] IS NULL) OR ([AccessUserValidFrom] = @p24)) AND ((@p25 = 1 AND [AccessUserValidTo] IS NULL) OR ([AccessUserValidTo] = @p26)) AND ((@p27 = 1 AND

- 再次将内容更新回原始内容。我如何检查这是否是某种事务回滚？或其他任何东西。请原谅英语。

Answer 1

您可能正在使用交易。当您使用事务时，您必须在完成事务时提交事务，否则它将自动回滚 - 因此，在您的情况下，您执行更新，没有错误。然后你检查使用相同的SQL连接，一切看起来很好。然后在某个时刻离开事务范围，事务自动回滚，恢复数据库中的更改。

ExecuteNonQuery更新不存储更改

1 个答案: