relview.h

来自「有计算机图形学、图像处理、dbms、sniffer、中游俄罗斯外挂、othell」· C头文件 代码 · 共 47 行

// RelView.h: interface for the CRelView class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_RELVIEW_H__25FD52F4_D6C7_45FB_AED8_9770DE69429D__INCLUDED_)
#define AFX_RELVIEW_H__25FD52F4_D6C7_45FB_AED8_9770DE69429D__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "DEF.h"
#include "Attribute.h"
#include "ViewSchemaFile.h"
class CRelView  
{
public:
	//BYTE exist;
	WORD length;
	BYTE name_length;
	CString name;
	UINT RelNo1;//所属关系号
	UINT RelNo2;
	int time;//时间戳
	UINT DataFileNo;
	PDB db_addr;
	UINT rcd_len;//辅助
	
	WORD attr_num;
    CAttribute *at;
	//以上写入文件
	
	BYTE wtag;//不写
public:
	void Reset();
	CRelView();
	CRelView(CString n,UINT id,WORD an,UINT FN,UINT rno1,UINT rno2=0);
	void AddAttribute(USHORT index,CAttribute &a);
	WORD GetHeadLength();
	void WriteBack();
	Record * NextRecord();
	virtual ~CRelView();

};

#endif // !defined(AFX_RELVIEW_H__25FD52F4_D6C7_45FB_AED8_9770DE69429D__INCLUDED_)