Example Method for C to Connect to a Database Using ODBC and OLEDB

This article illustrates how C # uses ODBC and OLEDB to connect to a database. Share it for your reference, as follows:

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.Odbc;
using System.Data.OleDb;
namespace ODBCtest
{
  class Program
  {
    static void Main(string[] args)
    {
      //ODBC Connect 
      string conString = "DSN=tian"; //tian Denote ODBC User data source name of 
      string sql = "select count(*) from stuinfo"; //stuinfo In the database bound for the user data source 1 Table 
      OdbcConnection con = new OdbcConnection(conString);
      con.Open();
      OdbcCommand com = new OdbcCommand(sql, con);
      int i = Convert.ToInt32(com.ExecuteScalar());
      Console.WriteLine(i);
      //OLEDB Connect 
      string conString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\tian.mdb"; // Connect Access Database 
      string sql = "select count(*) from stuinfo";
      OleDbConnection con = new OleDbConnection(conString);
      con.Open();
      OleDbCommand com = new OleDbCommand(sql, con);
      int i = Convert.ToInt32(com.ExecuteScalar());
      Console.WriteLine(i);
    }
  }
}

For more readers interested in C # related content, please check the topics on this site: "Summary of Thread Use Skills in C # Programming", "Summary of C # Operating Excel Skills", "Summary of XML File Operation Skills in C #", "C # Common Control Usage Tutorial", "WinForm Control Usage Tutorial", "C # Data Structure and Algorithm Tutorial", "C # Array Operation Skills Summary" and "C # Object-Oriented Programming Introduction Tutorial"

I hope this article is helpful to everyone's C # programming.