简单的数据库操作（表的创建。记录的插入，删除，显示）

#include 
#include 
#include 

int create_table(sqlite3*db)//创建表，未空的打开
{
	char *errmsg = NULL;
	char *sql;

	sql = "create table if not exists mytable (id integer primary key,name text);";

	if(SQLITE_OK != sqlite3_exec(db,sql,NULL,NULL,&errmsg))
	{
		printf("create table error!%s\n",errmsg);
		exit(-1);
	}

	return 0;
}
int insert_records(sqlite3*db)//插入记录
{
	char *errmsg = NULL;
	char sql[100];
	int id;
	char name[10];
	int num;
	int i;
	printf("enter number of records:");
	scanf("%d",&num);

	for(i=0;icol_value:%s\n",col_name[i],col_value[i]);
	}

	printf("***********************\n");

	return 0;
}
int inquire_usecb(sqlite3 *db)//显示表记录
{
	char *errmsg = NULL;
	char *sql;

	sql = "select * from mytable;";

	if(SQLITE_OK != sqlite3_exec(db,sql,displaycb,NULL,&errmsg))
	{
		printf("select error!%s\n",errmsg);
		exit(-1);
	}
	return 0;


}

int delate_record(sqlite3 * db)//删除一行表记录
{
	char *errmsg = NULL;
	char sql[100];
	int id;
	printf("enter the dalate id:");
	scanf("%d",&id);

	sprintf(sql,"delete from mytable where id = %d;",id);

	if(SQLITE_OK != sqlite3_exec(db,sql,NULL,NULL,&errmsg))
	{
		printf("select error!%s\n",errmsg);
		exit(-1);
	}

	return 0;

}
int inquire_usegt(sqlite3*db)//显示表记录，用sqlite3_get_table函数
{
	int row;
	int column;
	char **aresult;
	char *errmsg = NULL;
	char *sql;
	int i;
	sql = "select * from mytable;";

	if(SQLITE_OK != sqlite3_get_table(db,sql,&aresult,&row,&column,&errmsg))
	{
		printf("select error!%s\n",errmsg);
		exit(-1);
	}

	for(i = 0; i < (row + 1) * column ; i++)
	{
		printf("%10s",aresult[i]);
		if((i + 1) % column == 0)
		{
			printf("\n");
		}
	}

	sqlite3_free_table(aresult);

	return 0;
}

int main()
{
	sqlite3 * db = NULL;
	int ret;

	ret = sqlite3_open("mydatabase.db",&db);

	if(ret != SQLITE_OK)
	{
		perror("open mydatabase.db error!\n");
		exit(-1);
	}
	else
	{
		printf("open mydatabase.db successfully\n");
	}

	create_table(db);
	insert_records(db);
	inquire_usecb(db);
	delate_record(db);
	inquire_usegt(db);

	sqlite3_close(db);

    return 0;
}