add sql

.gitignore

@@ -4,3 +4,5 @@
 *.dtmp
 *.tmp
 $*
+~$*
+.$*

sql/db_create.sql

@@ -0,0 +1,111 @@
+drop database if exists bigwork;
+create database bigwork;
+
+create table `admin`
+(
+    passwd varchar(100) NOT NULL
+);
+
+insert into `admin` (`passwd`) values('');
+
+create table user
+(
+user_id         int             PRIMARY KEY AUTO_INCREMENT,
+user_name       varchar(100)    NOT NULL,
+user_mail       varchar(100)    NOT NULL,
+user_passwd     varchar(100)    NOT NULL,
+user_limit      int             NOT NULL,
+user_regtime    datetime        NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+create table book
+(
+book_id         int             PRIMARY KEY AUTO_INCREMENT,
+book_name       varchar(100)    NOT NULL,
+book_isbn       varchar(100)    DEFAULT NULL,
+book_publisher  varchar(100)    DEFAULT NULL,
+book_pubdate    datetime        DEFAULT NULL,
+book_lang       varchar(100)    DEFAULT NULL,
+user_id         int             NOT NULL,
+CONSTRAINT `fk_book_user_id` FOREIGN KEY (`user_id`) REFERENCES user(`user_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+create table document
+(
+doc_id      int             PRIMARY KEY AUTO_INCREMENT,
+doc_name    varchar(100)    NOT NULL,
+doc_url     varchar(100)    NOT NULL,
+doc_size    int             NOT NULL,
+doc_date    datetime        NOT NULL,
+doc_type    varchar(100)    NOT NULL,
+book_id     int             NOT NULL,
+user_id     int             NOT NULL,
+CONSTRAINT `fk_document_user_id` FOREIGN KEY (`user_id`) REFERENCES user(`user_id`),
+CONSTRAINT `fk_document_book_id` FOREIGN KEY (`book_id`) REFERENCES book(`book_id`),
+INDEX (doc_name(10)),
+INDEX (doc_date)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+create table note
+(
+note_id         int             PRIMARY KEY AUTO_INCREMENT,
+note_name       varchar(100)    NOT NULL,
+note_date       datetime        NOT NULL,
+note_content    mediumtext      NOT NULL DEFAULT '',
+book_id         int             NOT NULL,
+user_id         int             NOT NULL,
+CONSTRAINT `fk_note_user_id` FOREIGN KEY (`user_id`) REFERENCES user(`user_id`),
+CONSTRAINT `fk_note_book_id` FOREIGN KEY (`book_id`) REFERENCES book(`book_id`),
+INDEX (note_name(10))
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+create table record
+(
+record_time timestamp       PRIMARY KEY,
+record_type varchar(10)     NOT NULL,
+doc_URL     varchar(100)    NOT NULL,
+user_id     int             NOT NULL,
+INDEX (record_type)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+create table typetable
+(
+type_id     int             PRIMARY KEY AUTO_INCREMENT,
+type_name   varchar(20)     NOT NULL,
+UNIQUE (type_name)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+create table author
+(
+author_id     int             PRIMARY KEY AUTO_INCREMENT,
+author_name   varchar(50)     NOT NULL,
+INDEX (author_name(10))
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+create table book_author
+(
+author_id   int NOT NULL,
+book_id     int NOT NULL,
+PRIMARY KEY (`author_id`, `book_id`),
+CONSTRAINT `fk_ba_user_id` FOREIGN KEY (`user_id`) REFERENCES user(`user_id`),
+CONSTRAINT `fk_ba_author_id` FOREIGN KEY (`author_id`) REFERENCES author(`author_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+create table book_type
+(
+type_id  int    NOT NULL,
+book_id  int    NOT NULL,
+PRIMARY KEY (`type_id`, `book_id`),
+CONSTRAINT `fk_bt_user_id` FOREIGN KEY (`user_id`) REFERENCES user(`user_id`),
+CONSTRAINT `fk_bt_type_id` FOREIGN KEY (`type_id`) REFERENCES typetable(`type_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;
+
+create table book_type
+(
+user_id         int PRIMARY KEY,
+user_usedspace  int NOT NULL DEFAULT 0,
+user_bookcount  int NOT NULL DEFAULT 0,
+user_doccount   int NOT NULL DEFAULT 0,
+user_typecount  int NOT NULL DEFAULT 0,
+CONSTRAINT `fk_user_stat_user` FOREIGN KEY REFERENCES user(`user_id`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci;

sql/trigger.sql

@@ -0,0 +1,55 @@
+drop trigger if exists `trig_update_stat_book_ins`;
+DELIMITER ##
+create trigger `trig_update_stat_book_ins` 
+    after insert on book 
+    for each row begin
+    update user_stat set user_bookcount=user_bookcount+1 where user_stat.user_id=NEW.user_id;
+end ##
+DELIMITER ;
+
+drop trigger if exists `trig_update_stat_book_del`;
+DELIMITER ##
+create trigger `trig_update_stat_book_del` 
+    after delete on book 
+    for each row begin
+    update user_stat set user_bookcount=user_bookcount-1 where user_stat.user_id=OLD.user_id;
+end ##
+DELIMITER ;
+
+drop trigger if exists `trig_update_stat_doc_ins`;
+DELIMITER ##
+create trigger `trig_update_stat_doc_ins` 
+    after insert on document 
+    for each row begin
+    update user_stat set user_doccount=user_doccount+1 where user_stat.user_id=NEW.user_id;
+    update user_stat set user_usedspace=user_usedspace+NEW.doc_size where user_stat.user_id=NEW.user_id;
+end ##
+DELIMITER ;
+
+drop trigger if exists `trig_update_stat_doc_del`;
+DELIMITER ##
+create trigger `trig_update_stat_doc_del` 
+    after delete on document 
+    for each row begin
+    update user_stat set user_doccount=user_doccount-1 where user_stat.user_id=OLD.user_id;
+    update user_stat set user_usedspace=user_usedspace-OLD.doc_size where user_stat.user_id=OLD.user_id;
+end ##
+DELIMITER ;
+
+drop trigger if exists `trig_update_stat_type_ins`;
+DELIMITER ##
+create trigger `trig_update_stat_type_ins` 
+    after insert on typetable
+    for each row begin
+    update user_stat set user_typecount=user_typecount+1 where user_stat.user_id=NEW.user_id;
+end ##
+DELIMITER ;
+
+drop trigger if exists `trig_update_stat_type_del`;
+DELIMITER ##
+create trigger `trig_update_stat_type_del` 
+    after delete on typetable
+    for each row begin
+    update user_stat set user_typecount=user_typecount-1 where user_stat.user_id=OLD.user_id;
+end ##
+DELIMITER ;

设计文档.md

@@ -325,7 +325,6 @@ book_author、book_type两个为全码，无非主属性，必然满足BCNF
 
 触发器：
 
-- book_author和book_type这两个联系由数据库自动更新，当插入一本图书的时候，通过触发器来插入表记录，同时维护author表和type表。
 - 对于book表、document表、author表和type表，在更改时自动更新统计信息表
 
 ## 物理结构设计