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1.00/5 (1 vote)

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class IAlarmDatabase
{
public:
  IAlarmDatabase()        {}
  virtual~IAlarmDatabase(){}
  virtual bool OpenConnect(string strDataSource, string strUID, string strPwd) = 0;
  virtual bool ExecuteSql	(string strSql) = 0;
};

class CAlarmDatabase:public IAlarmDatabase
{
public:
	CAlarmDatabase();
	~CAlarmDatabase();
public:
	static CAlarmDatabase*	Instance();
	bool OpenConnect(string strDataSource, string strUID, string strPwd);
	bool ExecuteSql(string strSql);
protected:
	static auto_ptr<calarmdatabase> m_ADOInstance;
	_ConnectionPtr	m_pConnect;
	_RecordsetPtr	m_pRecordset;

};
</calarmdatabase>

the class is designed to operate oracle database!
someone tell me why?

Posted 20-Jun-10 21:44pm

happydebug

Updated 20-Jun-10 22:09pm

Moak

v2

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[no name] 21-Jun-10 4:12am

Why not?

Abhinav S 21-Jun-10 4:17am

Reason for my vote of 1
Are you asking for help? Looks like are you trying to post this question as a quiz to test others.

2 solutions

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happydebug · Answer 1 · 2010-06-20T22:29:00

of course not!I post the question with some languages that our website can't recognize so ...

What I what to ask is I Create a _ConnectionPtr object and call it's open method to open a connection with the oracle database,but as the code up there,When I shut the app a _com error occurs?why ? the _connectionPtr can't release itself?

Niklas L · Answer 2 · 2010-06-20T22:45:00

Solution 2

You should call m_pConnect->Close() before releasing it.
Here: ~CAlarmDatabase(), is a good place.

Posted 20-Jun-10 22:45pm

Niklas L

Comments

happydebug 21-Jun-10 5:53am

I have tried!But it doesn't work either!
Maybe it due to the singleton mode,I use a sington class to operate oracle

Niklas L 21-Jun-10 7:40am

...and you don't have any open record sets?