[libodbcxx-devel] sql server image retreive

[t. <tan...@qq...>]

i use sql server image field to store a file, for example inte.exe ,it's have 500M and more,i store it by setbinarystream,but i use getbinarystream to retreive  image field,just 8k retreived.
please help me


ODBCXX_STREAM* bitmigStream = result->getBinaryStream("bitmig");


				if (bitmigStream->good())
				{
			 


					std::ofstream  outExe;
					outExe.open("d:\\i.exe",std::ios::out|std::ios::binary);
					if (outExe.good())
					{
						char Buffer[1024];




						while (true)
						{
							ZeroMemory(Buffer,sizeof(Buffer));
							int  readed =	odbc::readStream(bitmigStream,Buffer,sizeof(Buffer));
							if (!bitmigStream->eof())
							{


								outExe.write(Buffer,readed);
							}
							else
							{
								 
								break;
							}
 
						}
						outExe.flush();
						outExe.close();
					}
				}