//执行命令
bool __cdecl CDataBase::ExecuteCommand(bool bRecordset)
{
try
{
//关闭记录集
CloseRecordset();
//执行命令
if (bRecordset==true)
{
m_DBRecordset->PutRefSource(m_DBCommand);
m_DBRecordset->CursorLocation=adUseClient;
EfficacyResult(m_DBRecordset->Open((IDispatch *)m_DBCommand,vtMissing,adOpenForwardOnly,adLockReadOnly,adOptionUnspecified));
}
else
{
m_DBConnection->CursorLocation=adUseClient;
EfficacyResult(m_DBCommand->Execute(NULL,NULL,adExecuteNoRecords));
}
return true;
}
catch (CComError & ComError)
{
if (IsConnectError()==true) TryConnectAgain(false,&ComError);
else SetErrorInfo(ErrorType_Other,GetComErrorDescribe(ComError));
}
return false;
}
//执行语句
VOID __cdecl CDataBase::ExecuteProcess(LPCTSTR pszSPName, bool bRecordset)
{
ASSERT(pszSPName != NULL);
try
{
//关闭记录集
CloseRecordset();
m_DBCommand->CommandText = pszSPName;
//执行命令
if (bRecordset == true)
{
m_DBRecordset->PutRefSource(m_DBCommand);
m_DBRecordset->CursorLocation = adUseClient;
EfficacyResult(m_DBRecordset->Open((IDispatch *)m_DBCommand, vtMissing, adOpenForwardOnly, adLockReadOnly, adOptionUnspecified));
}
else
{
m_DBConnection->CursorLocation = adUseClient;
EfficacyResult(m_DBCommand->Execute(NULL, NULL, adExecuteNoRecords));
}
}
catch (CComError & ComError)
{
if (IsConnectError() == true) TryConnectAgain(false, &ComError);
else SetErrorInfo(SQLException_Syntax, GetComErrorDescribe(ComError));
}
}
//关闭记录
VOID __cdecl CDataBase::CloseRecordset()
{
try
{
if (IsRecordsetOpened()) EfficacyResult(m_DBRecordset->Close());
}
catch (CComError & ComError)
{
SetErrorInfo(SQLException_Syntax, GetComErrorDescribe(ComError));
}
}
//关闭记录
bool __cdecl CDataBase::CloseRecordset()
{
try
{
if (IsRecordsetOpened()) EfficacyResult(m_DBRecordset->Close());
return true;
}
catch (CComError & ComError) { SetErrorInfo(ErrorType_Other,GetComErrorDescribe(ComError)); }
return false;
}
//关闭连接
VOID __cdecl CDataBase::CloseConnection()
{
try
{
CloseRecordset();
if ((m_DBConnection != NULL) && (m_DBConnection->GetState() != adStateClosed))
{
EfficacyResult(m_DBConnection->Close());
}
}
catch (CComError & ComError)
{
SetErrorInfo(SQLException_Syntax, GetComErrorDescribe(ComError));
}
}
//关闭连接
bool __cdecl CDataBase::CloseConnection()
{
try
{
CloseRecordset();
if ((m_DBConnection!=NULL)&&(m_DBConnection->GetState()!=adStateClosed))
{
EfficacyResult(m_DBConnection->Close());
}
return true;
}
catch (CComError & ComError) { SetErrorInfo(ErrorType_Other,GetComErrorDescribe(ComError)); }
return false;
}
//打开连接
VOID __cdecl CDataBase::OpenConnection()
{
//连接数据库
try
{
//关闭连接
CloseConnection();
//连接数据库
EfficacyResult(m_DBConnection->Open(_bstr_t(m_strConnect), L"", L"", adConnectUnspecified));
m_DBConnection->CursorLocation = adUseClient;
m_DBCommand->ActiveConnection = m_DBConnection;
//设置变量
m_dwConnectCount = 0L;
m_dwConnectErrorTime = 0L;
}
catch (CComError & ComError)
{
SetErrorInfo(SQLException_Syntax, GetComErrorDescribe(ComError));
}
}
//打开连接
bool __cdecl CDataBase::OpenConnection()
{
//连接数据库
try
{
//关闭连接
CloseConnection();
//连接数据库
EfficacyResult(m_DBConnection->Open(_bstr_t(m_strConnect),L"",L"",adConnectUnspecified));
m_DBConnection->CursorLocation=adUseClient;
m_DBCommand->ActiveConnection=m_DBConnection;
//设置变量
m_dwConnectCount=0L;
m_dwConnectErrorTime=0L;
return true;
}
catch (CComError & ComError) { SetErrorInfo(ErrorType_Other,GetComErrorDescribe(ComError)); }
return false;
}
