C#中的ODBC、OLEDB连接

原文: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();

        }

    }

}