bool CDBAdo::ExecuteCommand(bool bIsRecordset)
{
try
{
//关闭记录集
CloseRecordset();
//执行命令
if(bIsRecordset)
{
m_ptrRecordset->PutRefSource(m_ptrCommand);
m_ptrRecordset->CursorLocation = adUseClient;
DetectResult(m_ptrRecordset->Open((IDispatch*)m_ptrCommand, vtMissing, adOpenForwardOnly, adLockReadOnly, adOptionUnspecified));
}else
{
m_ptrConnection->CursorLocation = adUseClient;
DetectResult(m_ptrCommand->Execute(NULL, NULL, adExecuteNoRecords));
}
return true;
}
catch(_com_error& comError)
{
RecordErrorMsg(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));
}
}
//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;
}
//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;
}
bool CDBAdo::CloseConnection()
{
try
{
CloseRecordset();
if((m_ptrConnection!=NULL)&&(m_ptrConnection->GetState()!=adStateClosed))
DetectResult(m_ptrConnection->Close());
return true;
}
catch(_com_error& comError)
{
RecordErrorMsg(comError);
}
return false;
}
bool CDBAdo::OpenRecordset(char* szSQL)
{
try
{
//关闭记录集
CloseRecordset();
m_ptrRecordset->Open(szSQL, m_ptrConnection.GetInterfacePtr(), adOpenDynamic, adLockOptimistic, adCmdText);
return true;
}
catch(_com_error& comError)
{
RecordErrorMsg(comError);
}
return false;
}
void CVLDatabase::OpenRecordset(CursorTypeEnum cursorType, bool bind,
LockTypeEnum lockType, CursorLocationEnum cursorLocation)
{
CloseRecordset();
recordset->CursorLocation = cursorLocation;
recordset->Open((_bstr_t)recordsetName.c_str(), _variant_t((IDispatch*)connection, true),
cursorType, lockType, adCmdTableDirect);
opened = true;
if (bind)
{
HRESULT hr = S_OK;
hr = recordset->QueryInterface(__uuidof(IADORecordBinding), (LPVOID*)&recordBinding);
if (FAILED(hr)) _com_raise_error(hr);
hr = recordBinding->BindToRecordset(&record);
if (FAILED(hr)) _com_raise_error(hr);
}
}
void CVLDatabase::Clear()
{
ClearItems();
if (opened)
{
try
{
CloseRecordset();
connection->Execute(Format(TEXT("DELETE FROM %s"), (LPCTSTR)recordsetName.c_str()).c_str(),
NULL, adCmdText | adExecuteNoRecords);
OpenRecordset();
}
catch(_com_error &e)
{
ComErrorToException(e, string("Can not clear database"));
}
}
}
void CVLDatabase::Close()
{
ClearItems();
try
{
CloseRecordset();
recordset = NULL;
if (connected)
{
connection->Close();
connected = false;
}
connection = NULL;
}
catch (_com_error &e)
{
ComErrorToException(e, string("Can not close database"));
}
provider = "";
dataSource = "";
}
