odbc连接数据库

using System;

using System.Collections.Generic;

using System.Text;

using Console = System.Console;

using Microsoft.Data.Odbc;

 

using System.Data;

using System.Data.SqlClient;

 

 

namespace ConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

 

            try

            {

                connSqlserver();

            }

            catch (OdbcException MyOdbcException)

            {

                for (int i = 0; i < MyOdbcException.Errors.Count; i++)

                {

                    Console.Write("ERROR #" + i + "\n" +

                    "Message: " + MyOdbcException.Errors[i].Message + "\n" +

                    "Native: " + MyOdbcException.Errors[i].NativeError.ToString() + "\n" +

                    "Source: " + MyOdbcException.Errors[i].Source + "\n" +

                    "SQL: " + MyOdbcException.Errors[i].SQLState + "\n");

                }

            }

 

            

            Console.ReadLine();

 

        }

 

        public void ceshi()

        {

            try

            {

                string MyConString = "DRIVER={MySQL ODBC 3.51 Driver};" +

                "SERVER=localhost;" +

                "DATABASE=jy;" +

                "UID=root;" +

                "PASSWORD=123;" +

                "OPTION=3;CharSet=gb2312;";

 

                OdbcConnection MyConnection = new OdbcConnection(MyConString);

                MyConnection.Open();

 

                Console.WriteLine("\n !!! success, connected successfully !!!\n");

 

 

                //Create a sample table

                OdbcCommand MyCommand = new OdbcCommand("DROP TABLE IF EXISTS my_odbc_net", MyConnection);

                MyCommand.ExecuteNonQuery();

                MyCommand.CommandText = "CREATE TABLE my_odbc_net(id int, name varchar(20), idb bigint)";

                MyCommand.ExecuteNonQuery();

 

                //Insert

                MyCommand.CommandText = "INSERT INTO my_odbc_net VALUES(10,'" + filter("中国,''") + "', 300)";

                Console.WriteLine("INSERT, Total rows affected:" + MyCommand.ExecuteNonQuery()); ;

 

                //Insert

                MyCommand.CommandText = "INSERT INTO my_odbc_net VALUES(20,'mysql',400)";

                Console.WriteLine("INSERT, Total rows affected:" + MyCommand.ExecuteNonQuery());

 

                //Insert

                MyCommand.CommandText = "INSERT INTO my_odbc_net VALUES(20,'mysql',500)";

                Console.WriteLine("INSERT, Total rows affected:" + MyCommand.ExecuteNonQuery());

 

                //Update

                MyCommand.CommandText = "UPDATE my_odbc_net SET id=999 WHERE id=20";

                Console.WriteLine("Update, Total rows affected:" + MyCommand.ExecuteNonQuery());

 

                //COUNT(*) 

                MyCommand.CommandText = "SELECT COUNT(*) as TRows FROM my_odbc_net";

                Console.WriteLine("Total Rows:" + MyCommand.ExecuteScalar());

 

                //Fetch

                MyCommand.CommandText = "SELECT * FROM my_odbc_net";

                OdbcDataReader MyDataReader;

                MyDataReader = MyCommand.ExecuteReader();

                while (MyDataReader.Read())

                {

                    if (string.Compare(MyConnection.Driver, "myodbc3.dll") == 0)

                    {

                        Console.WriteLine("Data:" + MyDataReader.GetInt32(0) + " " +

                        MyDataReader.GetString(1) + " " +

                        MyDataReader.GetInt64(2)); //Supported only by Connector/ODBC 3.51

                    }

                    else

                    {

                        Console.WriteLine("Data:" + MyDataReader.GetInt32(0) + " " +

                        MyDataReader.GetString(1) + " " +

                        MyDataReader.GetInt32(2)); //BIGINTs not supported by Connector/ODBC

                    }

                }

 

                //Close all resources

                MyDataReader.Close();

                MyConnection.Close();

            }

            catch (OdbcException MyOdbcException)//Catch any ODBC exception ..

            {

                for (int i = 0; i < MyOdbcException.Errors.Count; i++)

                {

                    Console.Write("ERROR #" + i + "\n" +

                    "Message: " + MyOdbcException.Errors[i].Message + "\n" +

                    "Native: " + MyOdbcException.Errors[i].NativeError.ToString() + "\n" +

                    "Source: " + MyOdbcException.Errors[i].Source + "\n" +

                    "SQL: " + MyOdbcException.Errors[i].SQLState + "\n");

                }

            }

        }

 

 

        public static void connSqlserver()

        {

            string MyConString = "DRIVER={MySQL ODBC 3.51 Driver};" +

                "SERVER=localhost;" +

                "DATABASE=zs;" +

                "UID=root;" +

                "PASSWORD=123;" +

                "OPTION=3;CharSet=gb2312;";

 

            OdbcConnection MyConnection = new OdbcConnection(MyConString);

            MyConnection.Open();

            OdbcCommand MyCommand = new OdbcCommand("DROP TABLE IF EXISTS my_odbc_net", MyConnection);

            MyCommand.ExecuteNonQuery();

 

 

            //使用轻量级的SqlDataReader显示数据

            //指定Sql Server提供者的连接字符串

            string connString = "Data Source=PC-200908231053\\SQLEXPRESS;database=occupationNew;User id=sa;PWD=123";

 

            //建立连接对象

 

            SqlConnection Sqlconn = new SqlConnection(connString);

            //打开连接

            Sqlconn.Open();

 

            

            string thisCommand = "select * from Article where ID >"+ 1243931905062 +"order by ID";

 

            //创建SqlDataAdapter对象,有两个参数，一个是查询字符串，一个是连接对象

            SqlDataAdapter SqlDap = new SqlDataAdapter(thisCommand, Sqlconn);

 

            //创建DataSet对象

 

            DataSet thisDataset = new DataSet();

 

            //使用SqlDataAdapter的Fill方法填充DataSet，有两个参数，一个是创建的DataSet实例，一个是填入的表

 

            SqlDap.Fill(thisDataset, "informations");

 

            //显示查询结果

 

            foreach (DataRow theRow in thisDataset.Tables["informations"].Rows)

            {

                //Console.WriteLine(theRow["InformationId"] + "\t" + theRow["companyName"]);

                //MyCommand.CommandText = "INSERT INTO information(companyname,course,major,number,sex,pay,request,informationsource,datetime,job,workprovinci,detailplace,isbin,enddate,existcourse,academymajororder) "

                //    + "VALUES('" + filter(theRow["CompanyName"]) + "','" + filter(theRow["Course"]) + "','" + filter(theRow["Major"]) + "','" + filter(theRow["Number"]) + "','" + filter(theRow["Sex"]) + "','" + filter(theRow["Pay"]) + "','" + filter(theRow["request"]) + "','" + filter(theRow["informationSource"]) + "','" + filter(theRow["DateTime"]) + "','" + filter(theRow["Job"]) + "','" + filter(theRow["WorkProvince"]) + "','" + filter(theRow["DetailPlace"]) + "','" + filter(theRow["IsBin"]) + "','" + filter(theRow["EndDate"]) + "','" + filter(theRow["ExistCourse"]) + "','" + filter(theRow["AcademyMajorOrder"]) + "')";

 

 

                Console.WriteLine(theRow["ID"] + "\t" + theRow["Title"]);

                MyCommand.CommandText = "INSERT INTO downloads(title,fenlei,content,lint,updatetime,click) "

                    + "VALUES('" + filter(theRow["Title"]) + "','" + filter(theRow["CategoryID"]) + "','" + filter(theRow["Content"]) + "','" + filter(theRow["Author"]) + "','" + filter(theRow["DateTime"]) + "','" + filter(theRow["Hits"]) + "')";

 

                //Console.WriteLine(theRow["ID"] + "\t" + theRow["Title"]);

                //MyCommand.CommandText = "INSERT INTO xinwens(title,fenlei,content,username,updatetime,click) "

                //    + "VALUES('" + filter(theRow["Title"]) + "','" + "" + "','" + filter(theRow["Content"]) + "','" + filter("大学生就业指导中心") + "','" + filter(theRow["DateTime"]) + "','" + 0 + "')";

                

 

 

 

                Console.WriteLine("INSERT, Total rows affected:" + MyCommand.ExecuteNonQuery());

            }

            Sqlconn.Close();

 

            Console.ReadLine();

 

 

        }

 

        public static string filter(object text)

        {

            System.Text.Encoding GB2312 = System.Text.Encoding.GetEncoding("GB2312");

            System.Text.Encoding UTF8 = System.Text.Encoding.UTF8;

            byte[] data = GB2312.GetBytes(text.ToString());

            string msg = GB2312.GetString(data);

            return msg.Replace(",", "，").Replace("'", "’").Replace("―", "-");

 

        }

    }

}