tableblocks.h

我们自己写的miniSQL代码

// TableBlocks.h: interface for the TableBlocks class.
// 放置表定义的block  
// 最多110张表在数据库
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_TABLEBLOCKS_H__7889A6BC_B8B1_4E66_A2A1_694F8EFCD7D9__INCLUDED_)
#define AFX_TABLEBLOCKS_H__7889A6BC_B8B1_4E66_A2A1_694F8EFCD7D9__INCLUDED_

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

struct tableDefinition
{
	char table_name[20];
	int n_attribute;
	int ith_primary_key;
	int attri_start_block;
	int record_start_block;
	int index_start_blcok;
};

#define ST_TABLEDEFI_SIZE sizeof(struct tableDefinition)

class TableBlocks  
{
public:
	char* get_table_info(char* table_name);
	int get_index_start_block(char *table_name);
	int get_record_start_block(char* table_name);
	int get_attri_start_block(char* table_name);
	void add_table(struct table_info* ti,int attri_block,int record_block,int index_block);
	TableBlocks();
	virtual ~TableBlocks();
	char* Block_head;

	char* find_table_name(char * table_name);
};

#endif // !defined(AFX_TABLEBLOCKS_H__7889A6BC_B8B1_4E66_A2A1_694F8EFCD7D9__INCLUDED_)