1、Fedora下首先确保已装sqlite3，用命令行的方式装比较麻烦，其实Febora20中软件里面可以找到一个名叫Sqliteman的软件，下载安装就行了
/*
============================================================================
Name : Test.c
Author : wangchuan
Version :
Copyright : Your copyright notice
Description : Hello World in C, Ansi-style
============================================================================
*/
#include <sqlite3.h>
#include <stdio.h>
#include <malloc.h>
#include <stdlib.h>
#include <string.h>
sqlite3 *db = NULL;
int open_database(const char *dbfile)
{
int result;
result = sqlite3_open(dbfile,&db);
return result;
}
int close_database(void)
{
int result;
result = sqlite3_close(db);
return result;
}
#define TM_L 14
typedef struct _calllist callist;
struct _calllist{
long id;
int type;
long telnum;
char btime[TM_L+1];
long tcount;
float charge_rate;
float charge_sum;
};
void printdb(callist *cl,int length)
{
int i= sizeof(callist);
int j;
char btime[TM_L+1]={0};
for(j=0;j<length/i;j++){
memcpy(btime,(cl+j*i)->btime,TM_L);
printf("%ld, %d, %ld, %s, %ld, %1.2f, %1.2f\n",
(cl+j*i)->id,
(cl+j*i)->type,
(cl+j*i)->telnum,
btime,
(cl+j*i)->tcount,
(cl+j*i)->charge_rate,
(cl+j*i)->charge_sum);
}
}
int main() {
const char *dbfile = "data.sqlite";
callist *p_cl,*cl;
int res;
char *errmsg=NULL;
char **result;
int row,col;
int i;
res=open_database(dbfile);
if(res!=0){
printf("数据库打开失败:%s\n",sqlite3_errmsg(db));
return 1;
}
puts("数据库已打开");
const char *sqlcmd = "SELECT * FROM list";
res = sqlite3_get_table(db,sqlcmd,&result,&row,&col,&errmsg);
if(res!=SQLITE_OK)
printf("查询失败，代码：%d-%s\n",res,errmsg);
else if(row<1)
puts("查询结果为0条");
else{
puts("查询成功，查询结果为：");
cl = malloc(sizeof(callist)*row);
p_cl=cl;
for(i=1;i<=row;i++,p_cl+=sizeof(callist)){
p_cl->id=atol(result[i*col]);
p_cl->type=atoi(result[i*col+1]);
p_cl->telnum=atol(result[i*col+2]);
memcpy(p_cl->btime,result[i*col+3],TM_L);
p_cl->tcount=atol(result[i*col+4]);
p_cl->charge_rate=atof(result[i*col+5]);
p_cl->charge_sum=atof(result[i*col+6]);
//printf("%d\n",p_cl->id);
}
sqlite3_free_table(result);
printdb(cl,sizeof(callist)*row);
free(cl);
}
res=close_database();
if(res!=0){
printf("数据库关闭失败：%s\n",sqlite3_errmsg(db));
return 1;
}
puts("数据库已关闭");
return 0;
}
2、cd到此目录下编译：
cc Test.c -o Test -lsqlite3
3、运行：
./Test
注：在最后关闭数据库时会提示段错误（吐核），也没找到什么原因造成的。