add sql scripts

setup.sql

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+create table {prefix}_meta_permission
+(
+	permission_level integer primary key,
+	name varchar(10)
+);
+insert into {prefix}_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 {prefix}_meta_account
+(
+	account_status integer primary key,
+	name varchar(10)
+);
+insert into {prefix}_meta_account values (0,'隐藏'),(1,'禁止登陆'),(2,'待验证'),(3,'正常');
+
+create table {prefix}_meta_book
+(
+	status integer primary key,
+	name varchar(10)
+);
+insert into {prefix}_meta_book values (0,'隐藏'),(1,'禁用'),(2,'正常');
+
+create table {prefix}_meta_bookstatus
+(
+	status integer primary key,
+	name varchar(10)
+);
+insert into {prefix}_meta_bookstatus values (0,'借出'),(1,'丢失'),(2,'在馆');
+
+create table {prefix}_user
+(
+	username varchar(10) primary key,
+	password char(32), 
+	nickname varchar(10),
+	permission_level integer references {prefix}_meta_permission(permission_level),
+	account_status integer references {prefix}_meta_account(account_status)
+);
+create table {prefix}_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 {prefix}_reader
+(
+	username varchar(10) references {prefix}_user(username),
+	realname varchar(10),
+	realid char(18),
+	phonenum varchar(15),
+	user_lv integer references {prefix}_level(user_lv),
+	user_exp integer,
+	borrow_limit integer,
+	borrow_used integer,
+	borrow_time_limit integer,
+	bonus integer,
+	balance decimal(10,2)
+);
+create table {prefix}_booktype
+(
+	book_type varchar(10) primary key
+);
+create table {prefix}_book
+(
+	class_id varchar(20) primary key,
+	isbn varchar(13) unique,
+	name varchar(20),
+	book_type varchar(10) references {prefix}_booktype(book_type),
+	author varchar(10),
+	publisher varchar(20),
+	publish_time date,
+	status integer references {prefix}_meta_book(status)
+);
+create table {prefix}_bookstatus
+(
+	book_id varchar(25) primary key,
+	class_id varchar(20) references {prefix}_book(class_id),
+	position varchar(30),
+	status integer references {prefix}_meta_bookstatus(status)
+);
+create table {prefix}_borrow
+(
+	username varchar(10) references {prefix}_user(username),
+	book_id varchar(25) references {prefix}_bookstatus(book_id),
+	borrow_time date not null,
+	return_deadline date not null,
+	return_time date
+);