From 42b15f1c6e88b1f99b15c29e4cd603937aa956fc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E5=87=A1=E5=85=89=E4=B9=90?= Date: Tue, 22 Oct 2024 21:55:03 +0800 Subject: [PATCH] =?UTF-8?q?=E5=87=A1=E5=85=89=E4=B9=90?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...0\347\273\203\344\271\240\351\242\2301.md" | 0 ...0\347\273\203\344\271\240\351\242\2302.md" | 304 ++++++++++++++++++ 2 files changed, 304 insertions(+) rename "\345\207\241\345\205\211\344\271\220/20241021\347\273\203\344\271\240\351\242\230.md" => "\345\207\241\345\205\211\344\271\220/20241021\347\273\274\345\220\210\347\273\203\344\271\240\351\242\2301.md" (100%) create mode 100644 "\345\207\241\345\205\211\344\271\220/20241022\347\273\274\345\220\210\347\273\203\344\271\240\351\242\2302.md" diff --git "a/\345\207\241\345\205\211\344\271\220/20241021\347\273\203\344\271\240\351\242\230.md" "b/\345\207\241\345\205\211\344\271\220/20241021\347\273\274\345\220\210\347\273\203\344\271\240\351\242\2301.md" similarity index 100% rename from "\345\207\241\345\205\211\344\271\220/20241021\347\273\203\344\271\240\351\242\230.md" rename to "\345\207\241\345\205\211\344\271\220/20241021\347\273\274\345\220\210\347\273\203\344\271\240\351\242\2301.md" diff --git "a/\345\207\241\345\205\211\344\271\220/20241022\347\273\274\345\220\210\347\273\203\344\271\240\351\242\2302.md" "b/\345\207\241\345\205\211\344\271\220/20241022\347\273\274\345\220\210\347\273\203\344\271\240\351\242\2302.md" new file mode 100644 index 0000000..bb6e2fe --- /dev/null +++ "b/\345\207\241\345\205\211\344\271\220/20241022\347\273\274\345\220\210\347\273\203\344\271\240\351\242\2302.md" @@ -0,0 +1,304 @@ +```sql +# 二、综合题 +-- 1. 描述（10分） +-- 针对如下表Author结构创建索引，写出创建索引的SQL语句： + +CREATE DATABASE db23; + +CREATE TABLE Author +( + Id int PRIMARY KEY , + FirstName varchar(45) NOT NULL, + LastName varchar(45) NOT NULL, + UpdatedTime datetime NOT NULL + ) +-- 对FirstName创建唯一索引uniq_idx_firstname，对LastName创建普通索引idx_lastname +# 答题区： +-- ----------------------------------------------------------------- +CREATE INDEX UNIQUE uniq_idx_firstname on author (FirstName); +CREATE INDEX idx_lastname ON author (LastName); +-- ----------------------------------------------------------------- + +-- 2. 描述（15分） +-- 构造一个触发器trg_AuditLog，在向Employees表中插入一条数据的时候，触发插入相关的数据到AuditLog中。 +-- -- 职员表 +CREATE TABLE Employees +( + Id INT PRIMARY KEY auto_increment, + Name varchar(80) NOT NULL, + Age INT NOT NULL, + Address varchar(50), + SALARY decimal(18,2) +); +-- -- 审计日志表 +CREATE TABLE AuditLog +( + Id int primary key auto_increment, + NAME TEXT NOT NULL, + Salary decimal(18,2) +); +-- 写好触发器后，往Employees插入一条数据: +INSERT INTO Employees (NAME,AGE,ADDRESS,SALARY)VALUES ('Paul', 32, 'California', 20000.00 ); +-- 然后从AuditLog里面使用查询语句: +select NAME,Salary from AuditLog; +-- 会输出： +mysql> select NAME,Salary from AuditLog; ++------+----------+ +| NAME | Salary | ++------+----------+ +| Paul | 20000.00 | ++------+----------+ + + +# 答题区： + +-- ----------------------------------------------------------------- +DROP TRIGGER t_emp; +CREATE TRIGGER t_emp AFTER INSERT +on Employees for EACH ROW +BEGIN + +INSERT INTO AuditLog (NAME, salary) VALUES (new.name, new.Salary); + +END; + +INSERT INTO Employees (NAME,AGE,ADDRESS,SALARY)VALUES ('Paul', 32, 'California', 20000.00 ); +select NAME,Salary from AuditLog; + +-- ----------------------------------------------------------------- + +-- 3. 描述（10分） +-- 针对Author表创建视图vw_Author，只包含FirstName以及LastName两列，并对这两列重新命名，FirstName为v_FirstName，LastName修改为v_LastName： +-- 先往Author表插入2条测试数据: +insert into Author values (1,'PENELOPE', 'GUINESS', '2006-02-15 12:34:33'), (2,'NICK', 'WAHLBERG', '2006-02-15 12:34:33'); +-- 查询视图：select * from vw_Author; +-- 输出： ++-------------+------------+ +| v_FirstName | v_LastName | ++-------------+------------+ +| PENELOPE | GUINESS | +| NICK | WAHLBERG | ++-------------+------------+ +# 答题区： +-- ----------------------------------------------------------------- +insert into Author values (1,'PENELOPE', 'GUINESS', '2006-02-15 12:34:33'), (2,'NICK', 'WAHLBERG', '2006-02-15 12:34:33'); + +CREATE VIEW vw_Author as SELECT FirstName,LastName FROM author; +SELECT * FROM vw_Author; + +CREATE or REPLACE VIEW vw_Author as SELECT FirstName v_FirstName,FirstName LastName FROM author; +SELECT * FROM vw_Author; + +-- ----------------------------------------------------------------- + +-- 4. 描述（10分） +-- 使用以下数据，完成相关操作 +-- -- 新建表 +CREATE TABLE user +( + Id int primary key auto_increment, + UserCode varchar(80), + Birthday date NOT NULL, + FirstName varchar(14) NOT NULL, + LastName varchar(16) NOT NULL, + Gender char(1) NOT NULL, + HireDate date NOT NULL +); +# 插入一些数据： +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10001','1953-09-02','Georgi','Facello','M','1986-06-26'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10002','1964-06-02','Bezalel','Simmel','F','1985-11-21'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10003','1959-12-03','Parto','Bamford','M','1986-08-28'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10004','1954-05-01','Chirstian','Koblick','M','1986-12-01'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10005','1955-01-21','Kyoichi','Maliniak','M','1989-09-12'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10006','1953-04-20','Anneke','Preusig','F','1989-06-02'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10007','1957-05-23','Tzvetan','Zielinski','F','1989-02-10'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10008','1958-02-19','Saniya','Kalloufi','M','1994-09-15'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10009','1952-04-19','Sumant','Peac','F','1985-02-18'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10010','1963-06-01','Duangkaew','Piveteau','F','1989-08-24'); +INSERT INTO `user` (UserCode,Birthday,FirstName,LastName,Gender,HireDate) VALUES('10011','1953-11-07','Mary','Sluis','F','1990-01-22'); +-- +-- 查询user表，实现以下显示效果： ++----------+------------+-----------+-----------+--------+------------+ +| UserCode | Birthday | FirstName | LastName | Gender | HireDate | ++----------+------------+-----------+-----------+--------+------------+ +| 10001 | 1953-09-02 | Georgi | Facello | 女 | 1986-06-26 | +| 10002 | 1964-06-02 | Bezalel | Simmel | 男 | 1985-11-21 | +| 10003 | 1959-12-03 | Parto | Bamford | 女 | 1986-08-28 | +| 10004 | 1954-05-01 | Chirstian | Koblick | 女 | 1986-12-01 | +| 10005 | 1955-01-21 | Kyoichi | Maliniak | 女 | 1989-09-12 | +| 10006 | 1953-04-20 | Anneke | Preusig | 男 | 1989-06-02 | +| 10007 | 1957-05-23 | Tzvetan | Zielinski | 男 | 1989-02-10 | +| 10008 | 1958-02-19 | Saniya | Kalloufi | 女 | 1994-09-15 | +| 10009 | 1952-04-19 | Sumant | Peac | 男 | 1985-02-18 | +| 10010 | 1963-06-01 | Duangkaew | Piveteau | 男 | 1989-08-24 | +| 10011 | 1953-11-07 | Mary | Sluis | 男 | 1990-01-22 | ++----------+------------+-----------+-----------+--------+------------+ + +# 答题区： +-- ----------------------------------------------------------------- +SELECT UserCode,Birthday,FirstName,LastName,LastName,LastName FROM user ; +-- ----------------------------------------------------------------- + + +-- 5. 描述（30分） +-- 开发组收到M公司的开发邀约，拟开发一套OA办公自动化系统，该系统的部分功能及初步需求分析的结果如下 ： +-- +-- ``` +-- 部门:部门号、部门名、主管、联系电话、邮箱 +-- 员工：工号、姓名、职位、手机号码、薪资 +-- 用户：用户号、用户名、银行账号、手机号码、联系地址 +-- 用户申请：申请号、用户号、会议日期、天数、参会人数、地点、预算和受理标志 +-- ``` +-- +/*==============================================================*/ +/* DBMS name: MySQL 5.0 */ +/* Created on: 2024-10-22 16:23:24 */ +/*==============================================================*/ + + +CREATE DATABASE OADatabase; + +drop table if exists dept; + +drop table if exists employee; + +drop table if exists user; + +drop table if exists user_request; + +/*==============================================================*/ +/* Table: dept */ +/*==============================================================*/ +create table dept +( + dept_id int not null , + dept_name char(255) not null, + charge char(255) not null, + phone int not null, + emile int not null, + primary key (dept_id) +); + +/*==============================================================*/ +/* Table: employee */ +/*==============================================================*/ +create table employee +( + emp_id int not null, + dept_id int, + emp_name char(255) not null, + emp_job char(255) not null, + emp_phone int not null, + emp_sal int not null, + primary key (emp_id) +); + +/*==============================================================*/ +/* Table: user */ +/*==============================================================*/ +create table user +( + user_id int not null, + user_name char(255) not null, + bank_count int not null, + user_phone int not null, + user_adress char(255) not null, + primary key (user_id) +); + +/*==============================================================*/ +/* Table: user_request */ +/*==============================================================*/ +create table user_request +( + request_id int not null, + emp_id int, + user_id int, + conference_date char(255) not null, + day_count int not null, + attendance_person int not null, + user_adress char(255) not null, + budget int not null, + user_signal char(255) not null DEFAULT('已申请'), + primary key (request_id) +); + +alter table employee add constraint FK_dept_employee foreign key (dept_id) + references dept (dept_id) on delete restrict on update restrict; + +alter table user_request add constraint FK_employee_user_request foreign key (emp_id) + references employee (emp_id) on delete restrict on update restrict; + +alter table user_request add constraint FK_user_userrequest foreign key (user_id) + references user (user_id) on delete restrict on update restrict; + + +INSERT into dept (dept_id,dept_name,charge,phone,emile) VALUES +(1,'业务部','爱丽丝',112334,2222), +(2,'策划部','稻草人',556677,3333), +(3,'其他部门','腾讯',112233,5555); + + +INSERT into employee (emp_id,dept_id,emp_name,emp_job,emp_phone,emp_sal) VALUES +(1,2,'张三','主管',10086,5000), +(2,1,'李四','业务员',10085,6000), +(3,3,'王五','策划员',10084,7000); + +INSERT into user (user_id,user_name,bank_count,user_phone,user_adress) VALUES +(1,'夏明',1998,10081,'福建厦门'), +(2,'夏洛',1997,10084,'安徽合肥'), +(3,'哈哈',1996,10087,'北京海淀'); + + +INSERT into user_request (request_id,emp_id,user_id,conference_date,day_count,attendance_person,user_adress,budget,user_signal) VALUES +(1,1,1,'1998-10-11',10,1,'广东广州',3000,'已申请'); +-- (2,2,2,'1997-10-14',11,2,'上海浦东',4000,'已拒绝'), +-- (3,3,3,'1996-10-12',12,3,'江苏南京',5000,'已受理'), +-- (4,2,3,'1999-10-13',12,4,'江苏苏州',5000,'延期受理'), +-- (5,1,3,'1991-10-15',12,5,'安徽蚌埠',5000,'已过期'); +-- + +-- （1）M公司旗下有业务部、策划部和其他部门。每个部门只有一名主管，只负责管理本部门的工作，且主管参照员工关系的员工号；一个部门有多名员工，每名员工属于且仅属于一个部门。 +-- +-- （2）员工职位包括主管、业务员、 策划员等。业务员负责受理用户申请，设置受理标志。一名业务员可以受理多个用户申请，但一个用户申请只能由一名业务员受理。 +-- +-- （3）用户号唯一标识用户信息中的每一个用户。 +-- +-- （4）用户申请信息的受理标志有：已申请（默认）、已拒绝、已受理、延期受理、已过期。申请号唯一标识用户申请信息中的每一个申请，且一个用户可以提交多个申请，但一个用户申请只对应一个用户号。 +-- +-- 題目1（10分）：使用PowerDesigner，设计可以使用的数据库物理模型，要求中文名称和英文名称清楚（英文不知道的可以借助翻译软件），表关系准确；利用设计好的模型生成sql语句，创建一个名为OADatabase的数据库，备用； +-- 题目2（10分）：为了保证当用户申请会议，受理标志为 已申请，请设计一个触发器，当用户申请信息表插入数据的时候，可以判断其默认受理标志是否为：已申请，如果是，则无需处理允许正常插入，如果不是则重新个性受理标志为：已申请； + +# 答题区： +-- ----------------------------------------------------------------- + +delimiter// +CREATE TRIGGER t_user BEFORE INSERT +ON user_request for EACH row +BEGIN + + +IF new.user_signal != '已申请' THEN + +SET new.user_signal = '已申请'; + + +END IF; + +END// + +delimiter; + + +-- ----------------------------------------------------------------- + +-- 题目3（10分）：当业务员受理用户申请的时候，需要将当前处理的记录中受理标志修改为：已受理，同时将其它所有状态为：已申请，且会议日期已超过的记录中的受理标志个性为：已过期，请设计一个存储过程来处理此业务； + +# 答题区： +-- ----------------------------------------------------------------- + +-- ----------------------------------------------------------------- + + +``` + -- Gitee