Function API_ROUTINE isc_dsql_fetch_m

src/yvalve/why.cpp:2568–2598

Fetch next record from a dynamic SQL cursor

// Fetch next record from a dynamic SQL cursor
ISC_STATUS API_ROUTINE isc_dsql_fetch_m(ISC_STATUS* userStatus, isc_stmt_handle* stmtHandle,
	USHORT blrLength, SCHAR* blr, USHORT /*msgType*/, USHORT msgLength, SCHAR* msg)
{
	StatusVector status(userStatus);
	CheckStatusWrapper statusWrapper(&status);

	try
	{
		RefPtr<IscStatement> statement(translateHandle(statements, stmtHandle));

		InternalMessageBuffer msgBuffer(blrLength, reinterpret_cast<UCHAR*>(blr), msgLength, reinterpret_cast<UCHAR*>(msg));

		if (!msgBuffer.metadata)
		{
			(Arg::Gds(isc_sqlerr) << Arg::Num(-502) <<
				Arg::Gds(isc_dsql_cursor_open_err)).raise();
		}

		if (!statement->fetch(&statusWrapper, msgBuffer.metadata, reinterpret_cast<UCHAR*>(msg)) &&
			!(status.getState() & IStatus::STATE_ERRORS))
		{
			return 100;
		}
	}
	catch (const Exception& e)
	{
		e.stuffException(&statusWrapper);
	}

	return status[1];
}


// Release request for an sql statement