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DBHomework/setup.sql

147 lines
3.6 KiB
SQL

create table bs_meta_permission
(
permission_level integer primary key,
name varchar(10)
);
insert into bs_meta_permission values (0,'超级管理员'),(1,'管理员'),(2,'图书馆借阅处'),(3,'读者');
create table bs_meta_account
(
account_status integer primary key,
name varchar(10)
);
insert into bs_meta_account values (0,'隐藏'),(1,'禁止登陆'),(2,'待验证'),(3,'正常');
create table bs_meta_book
(
status integer primary key,
name varchar(10)
);
insert into bs_meta_book values (0,'隐藏'),(1,'禁用'),(2,'正常');
create table bs_meta_bookstatus
(
status integer primary key,
name varchar(10)
);
insert into bs_meta_bookstatus values (0,'借出'),(1,'丢失'),(2,'在馆');
create table bs_user
(
username varchar(10) primary key,
password char(32),
nickname varchar(10),
permission_level integer references bs_meta_permission(permission_level),
account_status integer references bs_meta_account(account_status)
);
create table bs_level
(
user_lv integer primary key,
min_amount_limit integer,
max_amount_limit integer,
min_time_limit integer,
max_time_limit integer,
min_balance decimal(10,2)
);
create table bs_reader
(
username varchar(10) references bs_user(username),
realname varchar(10),
realid char(18),
phonenum varchar(15),
user_lv integer references bs_level(user_lv),
user_exp integer,
borrow_limit integer,
borrow_used integer,
borrow_time_limit integer,
bonus integer,
balance decimal(10,2)
);
create table bs_booktype
(
book_type varchar(10) primary key
);
create table bs_book
(
class_id integer primary key,
isbn varchar(13) unique,
name varchar(20),
book_type varchar(10) references bs_booktype(book_type),
author varchar(10),
publisher varchar(20),
publish_time date,
status integer references bs_meta_book(status)
);
create table bs_bookstatus
(
book_id integer primary key,
class_id integer references bs_book(class_id),
position varchar(30),
status integer references bs_meta_bookstatus(status)
);
create table bs_borrow
(
username varchar(10) references bs_user(username),
book_id integer references bs_bookstatus(book_id),
borrow_time date not null,
return_deadline date not null,
return_time date
);
create table bs_session
(
id char(32) primary key,
last_time integer,
username varchar(10) references bs_user(username)
);
DROP PROCEDURE IF EXISTS newbook;
DELIMITER //
create procedure newbook(
IN isbn varchar(13),
IN name varchar(20),
IN book_type varchar(10),
IN author varchar(10),
IN publisher varchar(20),
IN publish_time date,
IN status integer
)
begin
declare maxid integer;
declare idcnt integer;
declare result_code integer default 0;
DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET result_code = 1;
start transaction;
select count(class_id) into idcnt from bs_book ;
select max(class_id) into maxid from bs_book;
if (idcnt=0) then
set maxid=1;
else
set maxid=maxid+1;
end if;
insert into bs_book values (maxid,isbn,name,book_type,author,publisher,publish_time,status);
if result_code=1 then
rollback;
else
commit;
end if;
select result_code;
end
//
DELIMITER ;
DELIMITER //
create trigger clean_up after insert on bs_session
for each row
begin
delete from bs_session where last_time+600<unix_timestamp(now());
end
//
DELIMITER ;
create view bs_userreader as select * from bs_user natural join bs_reader;
create view bs_bookdup as (select name,book_id from bs_book A inner join bs_bookstatus B on A.class_id=B.class_id)
create view bs_userborrow as select username,book_id from bs_user natural join bs_borrow where return_time is null