数据库课程设计-NBA球队管理系统（VC编程）

其他 2019-01-01 21:44:02 阅读次数: 0 
#import "C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace rename ("EOF", "EndOfFile")
#include <iostream>
#include <iomanip> //for setw()
using namespace std;
#import "C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace rename ("EOF", "EndOfFile")
#include <iostream>
#include <iomanip> //for setw()
using namespace std;
class player
{
public:
	char pname[255]; 
	char tname[255]; 
	float appearnum;
	float rebounds;
	float assists;
	float pscore;
public:
	player(){}
	~player(){}
}; 

int main()
{
	player pla;
	::CoInitialize(NULL); // 初始化OLE/COM库环境 ，为访问ADO接口做准备
	// 创建记录集对象
	_RecordsetPtr m_pRecordset("ADODB.Recordset");
	//m_pRecordset.CreateInstance(__uuidof(Recordset));
	//创建connection对象
	_ConnectionPtr m_pConnection("ADODB.Connection");	   
	//设置连接字符串
	_bstr_t strConnect=("driver={SQL Server};Server=(local)\\sqlexpress;DATABASE=NBA;UID=sa;PWD=123");
	//_bstr_t strConnect= "Provider=SQLOLEDB;Database=CAP; uid=sa; pwd=123;";

	_bstr_t bstrSQL("select pname,tname from player"); //查询语句，表stu_info

	std::cout<<"creating from database..."<<endl;
	try
	{
		m_pConnection->Open(strConnect,"","",adModeUnknown);
		if(m_pConnection==NULL)
			cerr<<"Lind data ERROR!n";
		_variant_t vpname,vtname; //对应库中的cid,cname,city,discnt

		//,vappearnum,vrebounds,vassists,vpscore
		
		while(1)
		{
			// 取得表中的记录
			m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);
			cout << "vpname vtname \n";
			//vappearnum vrebounds vassists vpscore
			cout<<"n----------------------------------------------------------------n\n";
			while (!m_pRecordset->EndOfFile)
			{
				vpname = m_pRecordset->GetCollect(_variant_t((long)0));
				vtname = m_pRecordset->GetCollect("tname");
			//	vappearnum = m_pRecordset->GetCollect("appearnum");
			//	vrebounds = m_pRecordset->GetCollect("rebounds");
			//	vassists = m_pRecordset->GetCollect("assists");
			//	vrebounds = m_pRecordset->GetCollect("rebounds");
				if (vpname.vt != VT_NULL && vtname.vt != VT_NULL  )
				{//&& vappearnum.vt != VT_NULL && vrebounds.vt != VT_NULL && vassists.vt != VT_NULL && vpscore.vt != VT_NULL
					cout.setf(ios::left);
					cout << setw(20) << (char*)(_bstr_t)vpname;
					cout << setw(8) << (char*)(_bstr_t)vtname;
				//	cout << setw(8) << (char*)(_bstr_t)vappearnum;
				//	cout <<setw(8) << (char*)(_bstr_t)vrebounds;
				//	cout << setw(8) << (char*)(_bstr_t)vassists;
				//	cout << setw(8) << (char*)(_bstr_t)vpscore;
					cout.unsetf(ios::left);
					cout << endl;
				}
				m_pRecordset->MoveNext(); ///移到下一条记录
			}
			cout << "n----------------------------------------------------------------n\n";
			m_pRecordset->Update();
			//m_pConnection->Execute(query_cmd,NULL,1); //用Execute执行sql语句来删除
			m_pRecordset->Close(); // 关闭记录集
		}
	}
		// 捕捉异常
	catch(_com_error e)
	{
		// 显示错误信息
	   //cerr << "nERROR:" << (char*)e.Description();//抛出异常
	}
	if(m_pConnection->State)
		m_pConnection->Close();
	::CoUninitialize();
    //删除
		::CoInitialize(NULL); // 初始化OLE/COM库环境 ，为访问ADO接口做准备
	char * query_cmd1 = "DELETE FROM player WHERE pname = '凯文-杜兰特'";
		_bstr_t bstrSQL1("select* from player"); 
	//std::cout<<"creating from database..."<<endl;
	try
	{
		m_pConnection->Open(strConnect,"","",adModeUnknown);
		if(m_pConnection==NULL)
			cerr<<"Lind data ERROR!n";
		_variant_t vpname,vtname,vappearnum,vrebounds,vassists,vpscore; //对应库中的cid,cname,city,discnt
		
		m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);

		m_pConnection->Execute(query_cmd1,NULL,1); //用Execute执行sql语句来删除
		m_pRecordset->Update();
		m_pRecordset->Close(); // 关闭记录集
		std::cout<<"deleting from database..."<<endl;
	}
	// 捕捉异常
	catch(_com_error e)
	{
		// 显示错误信息
	   //cerr << "nERROR:" << (char*)e.Description();//抛出异常
	}
	if(m_pConnection->State)
		m_pConnection->Close();
	::CoUninitialize();

	//增加
	::CoInitialize(NULL); // 初始化OLE/COM库环境 ，为访问ADO接口做准备
	char * query_cmd2 = "INSERT INTO player VALUES('凯文-杜兰特','雷霆',5,11.7,0.6,13.7)";
	//std::cout<<"creating from database..."<<endl;
	try
	{
		m_pConnection->Open(strConnect,"","",adModeUnknown);
		if(m_pConnection==NULL)
			cerr<<"Lind data ERROR!n";
		_variant_t vpname,vtname,vappearnum,vrebounds,vassists,vpscore; //对应库中的cid,cname,city,discnt
		
			// 取得表中的记录
		m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);
		m_pConnection->Execute(query_cmd2,NULL,1); 
		m_pRecordset->Update();
		m_pRecordset->Close(); // 关闭记录集
		std::cout<<"adding from database..."<<endl;
	}
	// 捕捉异常
	catch(_com_error e)
	{
		// 显示错误信息
	  cerr << "nERROR:" << (char*)e.Description();//抛出异常
	}
	if(m_pConnection->State)
		m_pConnection->Close();
	::CoUninitialize();
	return 0;
}

以上为表player的VC编程；

#import "C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace rename ("EOF", "EndOfFile")
#include <iostream>
#include <iomanip> //for setw()
using namespace std;
#import "C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace rename ("EOF", "EndOfFile")
#include <iostream>
#include <iomanip> //for setw()
using namespace std;
class team
{
public:
	char cname[255]; 
	char tname[255]; 
	float twin;
	float tlose;
	
public:
	team(){}
	~team(){}
}; 

int main()
{
	team pla;
	::CoInitialize(NULL); 
	_RecordsetPtr m_pRecordset("ADODB.Recordset");
	//m_pRecordset.CreateInstance(__uuidof(Recordset));
	_ConnectionPtr m_pConnection("ADODB.Connection");	   
	_bstr_t strConnect=("driver={SQL Server};Server=(local)\\sqlexpress;DATABASE=NBA;UID=sa;PWD=123");
	//_bstr_t strConnect= "Provider=SQLOLEDB;Database=CAP; uid=sa; pwd=123;";

	_bstr_t bstrSQL("select * from team"); //stu_info

	std::cout<<"creating from database..."<<endl;
	try
	{
		m_pConnection->Open(strConnect,"","",adModeUnknown);
		if(m_pConnection==NULL)
			cerr<<"Lind data ERROR!n";
		_variant_t vcname,vtname,vtwin,vtlose; //cid,cname,city,discnt
		
		while(1)
		{
			m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);
			cout << "vcname vtname vtwin vtlose \n";
			cout<<"n----------------------------------------------------------------n\n";
			while (!m_pRecordset->EndOfFile)
			{
				vcname = m_pRecordset->GetCollect(_variant_t((long)0));
				vtname = m_pRecordset->GetCollect("tname");
				vtwin = m_pRecordset->GetCollect("twin");
				vtlose = m_pRecordset->GetCollect("tlose");
				if (vcname.vt != VT_NULL && vtname.vt != VT_NULL && vtwin.vt != VT_NULL && vtlose.vt != VT_NULL )
				{
					cout.setf(ios::left);
					cout << setw(20) << (char*)(_bstr_t)vtname;
					cout << setw(8) << (char*)(_bstr_t)vtwin;
					cout << setw(8) << (char*)(_bstr_t)vtlose;
					cout <<setw(8) << (char*)(_bstr_t)vcname;
					cout.unsetf(ios::left);
					cout << endl;
				}
				m_pRecordset->MoveNext(); 
			}
			cout << "n----------------------------------------------------------------n\n";
			m_pRecordset->Update();
			//m_pConnection->Execute(query_cmd,NULL,1); 
			m_pRecordset->Close(); 
		}
	}
	catch(_com_error e)
	{
	   //cerr << "nERROR:" << (char*)e.Description();
	}
	if(m_pConnection->State)
		m_pConnection->Close();
	::CoUninitialize();
		::CoInitialize(NULL); 
	char * query_cmd1 = "DELETE FROM team WHERE cname = '迈克-马龙'";
	//std::cout<<"creating from database..."<<endl;
	try
	{
		m_pConnection->Open(strConnect,"","",adModeUnknown);
		if(m_pConnection==NULL)
			cerr<<"Lind data ERROR!n";
		_variant_t vcname,vtname,vtwin,vtlose; //cid,cname,city,discnt
		
		m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);

		m_pConnection->Execute(query_cmd1,NULL,1); 
		m_pRecordset->Update();
		m_pRecordset->Close(); 
		std::cout<<"deleting from database..."<<endl;
	}
	// 虏露脳陆脪矛鲁拢
	catch(_com_error e)
	{
		// 脧脭脢戮麓铆脦贸脨脜脧垄
	   //cerr << "nERROR:" << (char*)e.Description();//脜脳鲁枚脪矛鲁拢
	}
	if(m_pConnection->State)
		m_pConnection->Close();
	::CoUninitialize();

	//脭枚录脫
	::CoInitialize(NULL); // 鲁玫脢录禄炉OLE/COM驴芒禄路戮鲁 拢卢脦陋路脙脦脢ADO陆脫驴脷脳枚脳录卤赂
	// 麓麓陆篓录脟脗录录炉露脭脧贸
	//_RecordsetPtr m_pRecordset("ADODB.Recordset");
	//m_pRecordset.CreateInstance(__uuidof(Recordset));
	//麓麓陆篓connection露脭脧贸
//	_ConnectionPtr m_pConnection("ADODB.Connection");	   
	//脡猫脰脙脕卢陆脫脳脰路没麓庐
	//_bstr_t strConnect=("driver={SQL Server};Server=(local)\\sqlexpress;DATABASE=CAP;UID=sa;PWD=123");
	//_bstr_t strConnect= "Provider=SQLOLEDB;Database=NBA; uid=login; pwd=login;";

	//_bstr_t bstrSQL("select * from team"); //虏茅脩炉脫茂戮盲拢卢卤铆stu_info
	char * query_cmd2 = "INSERT INTO team VALUES('哔哩哔哩1',100,0,'姚明')";
	//std::cout<<"creating from database..."<<endl;
	try
	{
		m_pConnection->Open(strConnect,"","",adModeUnknown);
		if(m_pConnection==NULL)
			cerr<<"Lind data ERROR!n";
		_variant_t vcname,vtname,vtwin,vtlose; //露脭脫娄驴芒脰脨碌脛cid,cname,city,discnt
		
		m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);
		m_pConnection->Execute(query_cmd2,NULL,1); 
		m_pRecordset->Update();
		m_pRecordset->Close(); // 鹿脴卤脮录脟脗录录炉
		std::cout<<"adding from database..."<<endl;
	}
	// 虏露脳陆脪矛鲁拢
	catch(_com_error e)
	{
		// 脧脭脢戮麓铆脦贸脨脜脧垄
	  cerr << "nERROR:" << (char*)e.Description();//脜脳鲁枚脪矛鲁拢
	}
	if(m_pConnection->State)
		m_pConnection->Close();
	::CoUninitialize();
	return 0;
}

以上是表team的连接代码

由于分工时两人修改的表不同，而组员用的是mac系统，所以再导入到windows系统时会出现乱码 （忽视这些乱码吧 意义不大再见）

#import "C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace rename ("EOF", "EndOfFile")
#include <iostream>
#include <iomanip> //for setw()
using namespace std;
#import "C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace rename ("EOF", "EndOfFile")
#include <iostream>
#include <iomanip> //for setw()
using namespace std;
class coach
{
public:
	char cname[255]; 
	char tname[255]; 
	float cnum;
public:
	coach(){}
	~coach(){}
}; 

int main()
{
	coach pla;
	::CoInitialize(NULL); // 鲁玫脢录禄炉OLE/COM驴芒禄路戮鲁 拢卢脦陋路脙脦脢ADO陆脫驴脷脳枚脳录卤赂
	// 麓麓陆篓录脟脗录录炉露脭脧贸
	_RecordsetPtr m_pRecordset("ADODB.Recordset");
	//m_pRecordset.CreateInstance(__uuidof(Recordset));
	//麓麓陆篓connection露脭脧贸
	_ConnectionPtr m_pConnection("ADODB.Connection");	   
	//脡猫脰脙脕卢陆脫脳脰路没麓庐
	_bstr_t strConnect=("driver={SQL Server};Server=(local)\\sqlexpress;DATABASE=NBA;UID=sa;PWD=123");
	//_bstr_t strConnect= "Provider=SQLOLEDB;Database=CAP; uid=sa; pwd=123;";

	_bstr_t bstrSQL("select * from coach"); //虏茅脩炉脫茂戮盲拢卢卤铆stu_info

	std::cout<<"creating from database..."<<endl;
	try
	{
		m_pConnection->Open(strConnect,"","",adModeUnknown);
		if(m_pConnection==NULL)
			cerr<<"Lind data ERROR!n";
		_variant_t vcname,vtname,vcnum; //露脭脫娄驴芒脰脨碌脛cid,cname,city,discnt
		
		while(1)
		{
			// 脠隆碌脙卤铆脰脨碌脛录脟脗录
			m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);
			cout << "vcname vtname vcnum  \n";
			cout<<"n----------------------------------------------------------------n\n";
			while (!m_pRecordset->EndOfFile)
			{
				vcname = m_pRecordset->GetCollect(_variant_t((long)0));
				vtname = m_pRecordset->GetCollect("tname");
				vcnum = m_pRecordset->GetCollect("cnum");
				if (vcname.vt != VT_NULL && vtname.vt != VT_NULL && vcnum.vt != VT_NULL)
				{
					cout.setf(ios::left);
					cout << setw(20) << (char*)(_bstr_t)vcname;
					cout << setw(8) << (char*)(_bstr_t)vtname;
					cout << setw(8) << (char*)(_bstr_t)vcnum;
					cout.unsetf(ios::left);
					cout << endl;
				}
				m_pRecordset->MoveNext(); ///脪脝碌陆脧脗脪禄脤玫录脟脗录
			}
			cout << "n----------------------------------------------------------------n\n";
			m_pRecordset->Update();
			//m_pConnection->Execute(query_cmd,NULL,1); //脫脙Execute脰麓脨脨sql脫茂戮盲脌麓脡戮鲁媒
			m_pRecordset->Close(); // 鹿脴卤脮录脟脗录录炉
		}
	}
		// 虏露脳陆脪矛鲁拢
	catch(_com_error e)
	{
		// 脧脭脢戮麓铆脦贸脨脜脧垄
	   //cerr << "nERROR:" << (char*)e.Description();//脜脳鲁枚脪矛鲁拢
	}
	if(m_pConnection->State)
		m_pConnection->Close();
	::CoUninitialize();
    //脡戮鲁媒
		::CoInitialize(NULL); // 鲁玫脢录禄炉OLE/COM驴芒禄路戮鲁 拢卢脦陋路脙脦脢ADO陆脫驴脷脳枚脳录卤赂
	char * query_cmd1 = "DELETE FROM coach WHERE cname = '迈克-马龙1'";
	//std::cout<<"creating from database..."<<endl;
	try
	{
		m_pConnection->Open(strConnect,"","",adModeUnknown);
		if(m_pConnection==NULL)
			cerr<<"Lind data ERROR!n";
		_variant_t vcname,vtname,vcnum,vassists,vpscore; //露脭脫娄驴芒脰脨碌脛cid,cname,city,discnt
		
		m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);

		m_pConnection->Execute(query_cmd1,NULL,1); //脫脙Execute脰麓脨脨sql脫茂戮盲脌麓脡戮鲁媒
		m_pRecordset->Update();
		m_pRecordset->Close(); // 鹿脴卤脮录脟脗录录炉
		std::cout<<"deleting from database..."<<endl;
	}
	// 虏露脳陆脪矛鲁拢
	catch(_com_error e)
	{
		// 脧脭脢戮麓铆脦贸脨脜脧垄
	   //cerr << "nERROR:" << (char*)e.Description();//脜脳鲁枚脪矛鲁拢
	}
	if(m_pConnection->State)
		m_pConnection->Close();
	::CoUninitialize();

	//脭枚录脫
	::CoInitialize(NULL); // 鲁玫脢录禄炉OLE/COM驴芒禄路戮鲁 拢卢脦陋路脙脦脢ADO陆脫驴脷脳枚脳录卤赂
	// 麓麓陆篓录脟脗录录炉露脭脧贸
	//_RecordsetPtr m_pRecordset("ADODB.Recordset");
	//m_pRecordset.CreateInstance(__uuidof(Recordset));
	//麓麓陆篓connection露脭脧贸
//	_ConnectionPtr m_pConnection("ADODB.Connection");	   
	//脡猫脰脙脕卢陆脫脳脰路没麓庐
	//_bstr_t strConnect=("driver={SQL Server};Server=(local)\\sqlexpress;DATABASE=CAP;UID=sa;PWD=123");
	//_bstr_t strConnect= "Provider=SQLOLEDB;Database=NBA; uid=login; pwd=login;";

	//_bstr_t bstrSQL("select * from coach"); //虏茅脩炉脫茂戮盲拢卢卤铆stu_info
	char * query_cmd2 = "INSERT INTO coach VALUES('迈克-马龙2',12,'掘金')";
	//std::cout<<"creating from database..."<<endl;
	try
	{
		m_pConnection->Open(strConnect,"","",adModeUnknown);
		if(m_pConnection==NULL)
			cerr<<"Lind data ERROR!n";
		_variant_t vcname,vtname,vcnum,vassists,vpscore; //露脭脫娄驴芒脰脨碌脛cid,cname,city,discnt
		
			// 脠隆碌脙卤铆脰脨碌脛录脟脗录
		m_pRecordset->Open(bstrSQL,m_pConnection.GetInterfacePtr(),adOpenDynamic,adLockOptimistic,adCmdText);
		m_pConnection->Execute(query_cmd2,NULL,1); 
		m_pRecordset->Update();
		m_pRecordset->Close(); // 鹿脴卤脮录脟脗录录炉
		std::cout<<"adding from database..."<<endl;
	}
	// 虏露脳陆脪矛鲁拢
	catch(_com_error e)
	{
		// 脧脭脢戮麓铆脦贸脨脜脧垄
	  cerr << "nERROR:" << (char*)e.Description();//脜脳鲁枚脪矛鲁拢
	}
	if(m_pConnection->State)
		m_pConnection->Close();
	::CoUninitialize();
	return 0;
}
以上是表coach的代码（是的又是乱码TAT）


以上做到了用C++将数据库与VC++连接，在VC++中成功修改了数据库中的元素。

运行结果：

表coach操作前

表coach操作后


其它表操作类似

操作前

操作后

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转载自blog.csdn.net/qq_38006135/article/details/80467123
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