How to insert bmp image in sql server 2005

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SQL-Server-2005

VS2008

, +

I want to save image(bmp/jpg) in sql server 2005.
I have made DSN for database;
Table2(Name nvarchar(20),UserImage varbinary(max))
image is on PictureControl in mfc.
I have made connection successfully.

C++

void CSaveImageDlg::OnBnClickedButton1()
{
	try
	{
		CDatabase m_database;
		CRecordset m_recordset;
		bool p=m_database.Open(_T("Dermalog2"),0,0,_T("ODBC;"),0);//_T("ODBC;")
		m_recordset.m_pDatabase = &m_database; //tell CRecordset where to find the database
		m_recordset.Open(AFX_DB_USE_DEFAULT_TYPE,_T("select * from Table1"),CRecordset::appendOnly);
		//ASSERT(m_recordset.Open(AFX_DB_USE_DEFAULT_TYPE,_T("select * from Table1"),CRecordset::appendOnly));
		HBITMAP h_bit=m_Image.GetBitmap();
		CLongBinary clb;
		clb.m_hData = h_bit;
		clb.m_dwDataLength = ::GlobalSize(h_bit);		
		CBitmap bmp; 
		bmp.LoadBitmap (IDC_Image);
		//Get the number of the selected records
		long reCount=m_recordset.GetRecordCount();
		if(m_recordset.CanAppend())
		{
			m_recordset.AddNew();
			//m_recordset.SetFieldValue(_T("Name","UserImage"),"imran",clb);//Write our COleVariant to the table
			m_database.ExecuteSQL(_T("insert into Table1 values('khan',clb)"));
			//m_recordset.pdb.ExecuteSQL(_T("insert into Table1 values('khan',clb)"));
			m_recordset.Update();
		}
		m_recordset.Close();
		m_database.Close();
	}
	catch(CDBException* ex)
	{

	}	
}

m_recordset.CanAppend() function dioes not work.
What should I do next?

Posted 7-Feb-13 22:23pm

Member 7909353

Updated 10-Feb-13 20:44pm

v2

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skydger · Answer 1 · 2013-02-07T23:00:00

You could achieve this using custom recordset.
1. Create your own class inherited from CRecordset.
2. Put to public a class members like the following:

C++

public:
    LONG a;
    CLongBinary b;
    CString c;
    BOOL d;
//etc...

3. Assign a number of columns in constructor by defining m_nFields variable.
4. Implement data exchange between fields of data base with class members by defining DoFieldExchange.

C++

VOID MyRecordset::DoFieldExchange( CFieldExchange *ex ){
    ex->SetFieldType(CFieldExchange::outputColumn);
    RFX_Long( ex, "db_field_a", this->a );
    RFX_LongBinagy( ex, "db_field_b", this->b );
// ...
}

5. Open your recordset (as you actually did with CRecordset object) with any query to target table
6. Create a new record with AddNew() method
7. Assign your long binary data member with BYTE array and other members with respective values
8. Update your recordset.
These articles might help:
http://msdn.microsoft.com/en-us/library/s55kt8s3(v=vs.71).aspx[^]
http://msdn.microsoft.com/en-us/library/yd6x6wbd(v=vs.71).aspx[^]

http://msdn.microsoft.com/en-us/library/czxt1e3z.aspx[^]