.Net Teradata 连接上的连接字符串无效

Question

我正在尝试使用 .Net 与以下代码连接 Teradata。

但是当我执行它时，它会抛出一个错误，指出 无效的连接字符串 上

TdDataAdapter adapter = new TdDataAdapter(cn.ConnectionString,cmd.CommandText);

这是完整的代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Teradata.Client.Provider;
using System.Data;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        TdConnectionStringBuilder connectionStringBuilder = new TdConnectionStringBuilder();
        connectionStringBuilder.DataSource = "URK";
        connectionStringBuilder.Database = "DB";
        connectionStringBuilder.UserId = "USERNAME";
        connectionStringBuilder.Password = "PASSWORD";
        connectionStringBuilder.AuthenticationMechanism = "LDAP";

        TdConnection cn = new TdConnection();
        cn.ConnectionString = connectionStringBuilder.ConnectionString;
        cn.Open();

        TdCommand cmd = new TdCommand("EXEC MACRONAME", cn);
        TdDataReader reader = cmd.ExecuteReader();
        TdDataAdapter adapter = new TdDataAdapter(cn.ConnectionString,cmd.CommandText);
        DataSet ds = new DataSet();
        adapter.Fill(ds);

        myLabel.Text= ds.Tables[0].Rows[0]["event_id"].ToString();

        cmd.Dispose();
        cn.Close();
    }
}

我尝试使用connectionStringBuilder.ConnectionString 而不是上面使用的那个，但我仍然遇到同样的错误。

Answer 1

只是交换参数

TdDataAdapter adapter = new TdDataAdapter(cmd.CommandText, cn.ConnectionString);

根据TdDataAdapter构造函数的签名

public TdDataAdapter( 
   string commandText,
   string connectionString
)

见docs