//創建數據庫
create table if not exists user
(
userid integer primary key autoincrement,
username varchar(128),
classid integer
)
//插入數據庫對象
insert into user
(username,classid)
values
('王五',3)
//按格式顯示數據庫
select userid as 用戶序列號, username as 用戶名,classid as 班級號 from user
//更新數據庫
update user set classid = 3 where userid = 1
//刪除數據庫內部數據
delete from user where classid = 2