ado 連接sql server數據庫

1. 連接字符串：

//本地鏈接sql server 2008

connectStr="Provider=SQLOLEDB;Password=XXX;Persist Security Info=True;User ID=sa;Initial Catalog=DATABASE;Data Source=."

//本地鏈接sql server 2005

connectStr="Provider=SQLNCLI.1;Password=XXX;Persist Security Info=True;User ID=sa;Initial Catalog=Database;Data Source=."

//遠程鏈接sql server 2005(sql server 同時要設置遠程訪問)

connectStr="Provider=SQLOLEDB;network library= DBMSSOCN;Data Source=219.223.252.170;Password=XXX;User ID=sa;Initial Catalog=Database;";

     2. 鏈接過程：

        _ConnectionPtr m_pConnection;

isComInited = ::CoInitialize(NULL); //初始化COM庫

try

{

if( FAILED( m_pConnection.CreateInstance(__uuidof(Connection)) ) ) //創鍵Connection對象

{

printf("創建Connection對象出錯");

}

else

{

m_pConnection->Open (strConnect,"","", adModeUnknown);

}

}

catch(...)

{

printf("鏈接數據庫出錯");

}