1.14

#include<stdio.h>

#include<stdlib.h>

#include<sqlite3.h>

void create_table(sqlite3 *db)

{
char *sql;
char *errmsg=NULL;

sql = "create table if not exists mytable (id integer primary key,name txt);";
if(SQLITE_OK != sqlite3_exec(db,sql,NULL,NULL,&errmsg))
{
printf("operator failed :%s\n",errmsg);
exit(-1);
}

}

int delete_record(sqlite3 *db)

{
char *errmsg=NULL;
char sql[100];
int n;

}

int insert_record(sqlite3 *db)

{
char *errmsg=NULL;
char sql[100];
int n;
char str[20];

printf("input :");
scanf("%d",&n);
scanf("%s",str);

sprintf(sql,"insert into mytable (id,name) values(%d,'%s');",n,str);
if(SQLITE_OK != sqlite3_exec(db,sql,NULL,NULL,&errmsg))
{
printf("operator failed :%s\n",errmsg);
exit(-1);
}

}

int displaycb(void *para,int n_col,char **col_value,char **col_name)

{

    int i;
printf("total column is %d\n",n_col);

for(i=0;i<n_col;i++)
{
   printf("col_name:%s-->col_val:%s\n",col_name[i],col_value[i]);
}

    printf("=================================\n");

return 0;

}

int inquire_usecd(sqlite3 *db)

{

    char *sql;
char *errmsg=NULL;

sql="select * from mytable;";
if(SQLITE_OK != sqlite3_exec(db,sql,displaycb,NULL,&errmsg))
{
printf("operator failed :%s\n",errmsg);
exit(-1);
}

}

int main()

{
sqlite3 *db = NULL;
int ret;

ret = sqlite3_open("mydatabase.db",&db);
if(ret != SQLITE_OK)
{
perror("sqlite open");
}
else
{
printf("open sqlite3 database successfully!\n");
}

create_table(db);
insert_record(db);
inquire_usecd(db);

}