環境：虛擬機windows xp，vs2008 + SQLServer 2005 Express

數據庫訪問技術采用ADO。

需要安裝的軟件包括：microsoft_dotnetfxchs2.0.exe、WindowsInstaller-KB893803-v2-x86.exe、SQLEXPR32_CHS.EXE、SQLServer2005_SSMSEE.msi、SQLServer2005SP3-KB955706-x86-CHS.exe。

數據庫的一些屬性配置及注意事項見后面參考文獻。

初始數據庫表的建立及代碼參考http://www.yesky.com/277/1893277.shtml

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#include"stdafx.h"

#include<iostream>

#include<iomanip>//for setw()

#include"windows.h"

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usingnamespace std;

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//導入ADO相關類說明,路徑名可以根據自己系統安裝的ADO支持文件的路徑來自行設定

//#improt語句會在工程可執行程序輸出目錄中產生兩個文件，分別為*.tlh(類型庫頭文件)及*.tli(類型庫實現文件)

//語句no_namespace說明ADO對象不使用命名空間，rename("EOF", "EndOfFile")說明將ADO中結束標志EOF改為EndOfFile，以避免和其它庫中命名相沖突

#import"C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace rename("EOF","EndOfFile")

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classSTU

{

public:

??? charsnum[10];

??? charsname[10];

??? charssex[2];

??? longsage;

??? charsmajor[20];

public:

??? STU(){}

??? ~STU(){}

};

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int _tmain(int argc,_TCHAR* argv[])

{

??? STUstudent;

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??? ::CoInitialize(NULL);//初始化OLE/COM庫環境，為訪問ADO接口做準備

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??? //_RecordsetPtr智能指針，可以用來打開庫內數據表，并可以對表內的記錄、字段等進行各種操作

??? _RecordsetPtr m_pRecordset("ADODB.Recordset");//定義記錄集對象

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??? //_ConnectionPtr智能指針，通常用于打開、關閉一個庫連接或用它的Execute方法來執行一個不返回結果的命令語句

??? _ConnectionPtr m_pConnection("ADODB.Connection");//定義數據庫連接對象

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??? _bstr_tbstrSQL("select *from stu_info");//查詢語句

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??? char*query_cmd = "DELETEFROM stu_info WHERE sname = '本拉登'";

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??? try

??? {??

??????? m_pConnection.CreateInstance("ADODB.Connection");//創建Connection對象

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??????? //設置連接字符串，必須是BSTR型或者_bstr_t類型,若數據庫在網絡上則Server為形如(192.168.1.5,3340)?

??????? _bstr_t strConnect = "Provider=SQLOLEDB; Server=.\\sqlexpress;Database=student; uid=sa; pwd=123456;";

???????

??????? m_pConnection->Open(strConnect,"","",adModeUnknown);//NULL、adConnectUnspecified、//建立與服務器連接

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??????? if (m_pConnection ==NULL)

??????? {

??????????? cerr<<"Lind data ERROR!\n";

??????? }

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??????? m_pRecordset.CreateInstance(__uuidof(Recordset));//創建記錄集對象

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??????? //取得表中的記錄

??????? m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);

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??????? _variant_t vsnum, vsname,vsage, vssex,vsmajor;//對應庫中的snum,sname,sage,ssex,smajor

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??????? cout<<"學號姓名年齡性別專業";

??????? cout<<"\n-------------------------------------------\n";

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??????? while (!m_pRecordset->EndOfFile)

??????? {

??????????? vsnum= m_pRecordset->GetCollect(_variant_t((long)0));//這兒給字段編號和字段名都可以

??????????? vsname= m_pRecordset->GetCollect("sname");

??????????? vsage= m_pRecordset->GetCollect("sage");

??????????? vssex= m_pRecordset->GetCollect("ssex");

??????????? vsmajor= m_pRecordset->GetCollect("smajor");

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??????????? if (vsnum.vt !=VT_NULL && vsname.vt !=VT_NULL&& vsage.vt!=VT_NULL &&

??????????????? vssex.vt != VT_NULL&& vsmajor.vt!=VT_NULL)

??????????? {

??????????????? cout.setf(ios::left);

??????????????? cout<<setw(14)<<(char*)(_bstr_t)vsnum;

??????????????? cout<<setw(14)<<(char*)(_bstr_t)vsname;

??????????????? cout<<setw(8)<<vsage.lVal;

??????????????? cout<<setw(8)<<(char*)(_bstr_t)vssex;

??????????????? cout<<setw(20)<<(char*)(_bstr_t)vsmajor;

??????????????? cout.unsetf(ios::left);

??????????????? cout<<endl;

??????????? }

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??????????? m_pRecordset->MoveNext();//移動下一條記錄

??????? }

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??????? cout<<"\n------------------------------------------\n";

??????? cout<<"\n請輸入你要添加的學生信息\n";

??????? cout<<"學號：";

??????? cin>>student.snum;

??????? cout<<"\n姓名：";

??????? cin>>student.sname;

??????? cout<<"\n年齡：";

??????? cin>>student.sage;

??????? cout<<"\n性別：";

??????? cin>>student.ssex;

??????? cout<<"\n專業：";

??????? cin>>student.smajor;

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??????? m_pRecordset->MoveFirst();//移動到第一條記錄

??????? m_pRecordset->AddNew();//添加新記錄

??????? m_pRecordset->PutCollect("snum",_variant_t(student.snum));

??????? m_pRecordset->PutCollect("sname",_variant_t(student.sname));

??????? m_pRecordset->PutCollect("sage",_variant_t(student.sage));

??????? m_pRecordset->PutCollect("ssex",_variant_t(student.ssex));

??????? m_pRecordset->PutCollect("smajor",_variant_t(student.smajor));

??????? m_pRecordset->Update();

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??????? m_pConnection->Execute(query_cmd,NULL, 1);//用Execute執行sql語句來刪除

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??????? m_pRecordset->Close();//關閉記錄集

??? }

??? catch (_com_errore)//捕捉異常

??? {

??????? cerr<<"\nERROR:"<<(char*)e.Description();//拋出異常

??? }

???

??? if (m_pConnection->State)

??? {

??????? m_pConnection->Close();

??? }

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??? ::CoUninitialize();

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??? return 0;

}

參考文獻：

1、? http://wenku.baidu.com/view/f1ff0c1d964bcf84b9d57bbd.html

2、? http://www.yesky.com/277/1893277.shtml

3、? http://blog.csdn.net/hqw7286/article/details/5441000

4、? http://blogger.org.cn/blog/more.asp?name=fishyqd&id=13038

5、? http://www.west263.com/www/info/66267-1.htm

6、? http://www.cnblogs.com/Chinaluis/archive/2008/10/06/1304634.html

7、? http://zhidao.baidu.com/question/98140032.html

8、? http://blog.csdn.net/qingshansima/article/details/4059167