C＃odbc连接到sql创建表，但在SQL Server中看不到

Question

I want to create tables in SQL Server in my program. The code compiles and everything seems to be ok, but after I close it the tables don't appear in the SQL Server database.

EDITED

Please help here is the code and the connection string:

connectionString = "Driver={Sql Server}; Server=baxu\\sqlexpress; Database = baza1;" + $"UID ={ username };PWD={ password };";

---

Code:

try
{
    using (OdbcCommand comm = new OdbcCommand())
    {
        comm.Connection = cnn;
        comm.CommandText = cmdString;
        comm.ExecuteNonQuery();
    }
}
catch (Exception ex)
{
    System.Windows.MessageBox.Show(ex.Message); 
}

Answer 1

This here should work for you:

NB: If you dont use trusted connection - Then look at the different connectionstrings here :

var conn = new OdbcConnection();
            conn.ConnectionString =
                          @"Driver={SQL Server};" +
                         @"Server=EGC25199\SQL2016;" +
                          @"DataBase=LegOgSpass;" +
                          @"Trusted_Connection=Yes;";


            try
            {
                string cmdString = "CREATE TABLE dbo.odbctable (Wartosc int, Czas datetime)";                                         
                conn.Open();

                using (OdbcCommand cmd = new OdbcCommand(cmdString, conn))
                {
                    cmd.ExecuteNonQuery();
                    conn.Close();
                }

            }

            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }

Answer 2

This might help. I noticed you used an unassigned name in the create command.

using System;
using System.Data;
using System.Data.Odbc;
   class CommandOdbcExample{

      static void Main() {
     OdbcConnection comm = new OdbcConnection(@"DSN=MyOdbcdDB");
     OdbcCommand nonqueryCommand = comm.CreateCommand();

         try {
            comm.Open();

            nonqueryCommand.CommandText = "CREATE TABLE MyTable (Wartosc  int, Czas  datetime)";
            Console.WriteLine(nonqueryCommand.CommandText);
            nonqueryCommand.ExecuteNonQuery();




         } 
         catch (OdbcException ex) 
         {
            Console.WriteLine(ex.ToString());
         }
         finally 
         {  
            comm.Close();
            Console.WriteLine("Connection Closed.");
         }
      }
   }