C#中的ODBC、OLEDB连接

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)
{
Console.WriteLine("##################################ODBC连接1#############################");

using (OdbcConnection conn = new OdbcConnection("driver={SQL Server};SERVER=127.0.0.1;UID=sa;PWD=Abc123123;DATABASE=booking"))
{
conn.Open();
OdbcCommand cmd = conn.CreateCommand();
cmd.CommandText = "select  * from TEST";
using (OdbcDataReader reader = cmd.ExecuteReader())
{
Console.WriteLine("字段数:\t{0}", reader.FieldCount);
Console.WriteLine("==============数据内容===========");
while (reader.Read())
{
Console.WriteLine("ID: {0}\tTitle: {1}", reader.GetInt32(0).ToString(), reader.GetString(1));
}
}
}
Console.WriteLine("################################ODBC连接2###############################");

string conString = "Dsn=ggyy1;" + "Uid=sa;" + "Pwd=Abc123123;";//Dsn表示在ODBC创建的用户数据源名

OdbcConnection con = new OdbcConnection(conString);
string sql = "select * from TEST"; //stuinfo为用户数据源绑定的数据库中的一个表

con.Open();
OdbcCommand com = new OdbcCommand(sql, con);
using (OdbcDataReader reader = com.ExecuteReader())
{
Console.WriteLine("字段数:\t{0}", reader.FieldCount);
Console.WriteLine("==============数据内容===========");
while (reader.Read())
{
Console.WriteLine("ID: {0}\tTitle: {1}", reader.GetInt32(0).ToString(), reader.GetString(1));
}
}
Console.WriteLine();

Console.WriteLine("##################################OLEDB连接#############################");

string conString1 = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\test.mdb"; //连接Access数据库
string sql1 = "select count(*) from TEST";
OleDbConnection con1 = new OleDbConnection(conString1);
con1.Open();
OleDbCommand com1 = new OleDbCommand(sql1, con1);
int i = Convert.ToInt32(com1.ExecuteScalar());
Console.WriteLine(i);
Console.Read();
}
}
}