VC2005使用SQLite，适用于WIN32以及WINCE

htbzwd

本文来自http://blog.csdn.net/hellogv/

首先，把编译SQLITE生成的DLL、LIB和sqlite3.h 放到项目的文件夹下，把项目=》属性=》链接器=》输入=》附加依赖项：输入SQLITE的lib文件名

一、创建MySQLite.cpp：
#include "stdafx.h"
#include "MySQLite.h"
bool MySQLite::sqlite_connect(char *filename)
{
db=NULL;
zErrMsg = 0;
row = 0, column = 0;
int rc;
rc = sqlite3_open(filename, &db); //打开指定的数据库文件,如果不存在将创建一个同名的数据库文件
if( rc )
{
strcpy(zErrMsg,sqlite3_errmsg(db));//保存错误信息
sqlite3_close(db);
return false;
}
return true;   
}

bool MySQLite::sqlite_exec(char *sql)
{
int rc;
rc=sqlite3_exec( db , sql , 0 , 0 , &zErrMsg );
if(rc == SQLITE_OK)
return true;
return false;
}

void MySQLite::sqlite_search(char *search_sql)
{
sqlite3_get_table( db,search_sql,&azResult,&row,&column,&zErrMsg);
}

bool MySQLite::sqlite_disconnect()
{
//释放掉 azResult 的内存空间
sqlite3_free_table( azResult );
if(sqlite3_close(db)==SQLITE_OK) //关闭数据库
return true;
return false;
}

二、创建MySQLite.h：
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "sqlite3.h"
class MySQLite
{
private:
sqlite3 *db;//数据库句柄
char **azResult; //二维数组存放结果
char *zErrMsg;//保存错误信息
int row;
int column;
public:
bool sqlite_connect(char *filename);//连接数据库
bool sqlite_exec(char *sql);//执行SQL命令
void sqlite_search(char *search_sql);//查询
bool sqlite_disconnect();//断开数据库连接

int GetTableRow(){return row;}//查询后，取得表“列”数
int GetTableColumn(){return column;}//查询后，取得表“栏”数
char *GetErrorMsg(){return zErrMsg;}//取得当前错误提示
char *GetTableData(int x,int y){return *(azResult+x+y*column);}//查询后，取得表内某个单元值
};

三、创建测试文件test.cpp：

#include "stdafx.h"
#include <iostream>
#include "MySQLite.h"
#define _DEBUG_
using namespace std;
int main( void )
{
bool result;
MySQLite *sqlite=new MySQLite();
result=sqlite->sqlite_connect("hellogv.db");
if(!result) cout<<sqlite->GetErrorMsg()<<endl;

result=sqlite->sqlite_exec("CREATE TABLE SensorData(ID INTEGER PRIMARY KEY,SensorID INTEGER,SiteNum INTEGER,Time VARCHAR(500),SensorParameterREAL);");
if(!result) cout<<sqlite->GetErrorMsg()<<endl;

result=sqlite->sqlite_exec("INSERT INTO \"SensorData\" VALUES(NULL , 1 , 1 , '200605011206', 18.9 );");
if(!result) cout<<sqlite->GetErrorMsg()<<endl;


result=sqlite->sqlite_exec("INSERT INTO \"SensorData\" VALUES(NULL , 23 , 45 , '200605011306', 16.4 );");
if(!result) cout<<sqlite->GetErrorMsg()<<endl;

sqlite->sqlite_search("SELECT * from SensorData");
cout<<sqlite->GetTableColumn()<<"   "<<sqlite->GetTableRow()<<endl;
cout<<sqlite->GetTableData(0,0)<<endl;

sqlite->sqlite_disconnect();

return 0;
}