Question

我正在尝试用C＃编写一个MySQL查询，如下所示，我没有看到任何错误，但我没有看到所需的输出，查询在mysqlworkbench中工作正常，使用MySql.Data.dll连接6.9.9，我错过了什么？如何调试错误？

        string connectionString = "server=10.xx.xxx.xx;database=databasename;uid=username;pwd=password;";

        var conn = new MySql.Data.MySqlClient.MySqlConnection();
        conn.ConnectionString = connectionString;
        try
        {
            Console.WriteLine("Connecting to MySQL...");
            conn.Open();

            string sql = "select bb.version,bb.baat,bb.au from build bb where bb.version='x.xxx' and bb.state='COMPLETE'";
            MySqlCommand cmd = new MySqlCommand(sql, conn);
            MySqlDataReader rdr = cmd.ExecuteReader();

            while (rdr.Read())
            {
                Console.WriteLine(rdr[0] + " -- " + rdr[1]);
                Console.ReadLine();
            }
            rdr.Close();
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.ToString());
        }

Answer 1

尝试改变：

from rdr[0]

为：

rdr.GetString(0)

mysql查询不起作用

1 个答案: