MySQL上機操作

1．??? 創建數據庫，名稱為 MyBank

MariaDB [(none)]> create database MyBank;

Query OK, 1 row affected (0.006 sec)

2． 創建數據表 customer (客戶)、deposite(存款)、bank(銀行)，表結構如下：

customer 的表結構

MariaDB [MyBank]> create table customer (

-> c_id char(6) not null primary key comment ‘客戶標識’,

-> name varchar(30) not null comment ‘客戶姓名’,

-> location varchar(30) comment ‘工作地點’,

-> salary double(9,2) comment ‘工資’

-> );

Query OK, 0 rows affected (0.021 sec)

MariaDB [MyBank]> desc customer;

+----------+-------------+------+-----+---------+-------+

| Field??? | Type??????? | Null | Key | Default | Extra |

+----------+-------------+------+-----+---------+-------+

| c_id???? | char(6)???? | NO?? | PRI | NULL??? |?????? |

| name???? | varchar(30) | NO?? |???? | NULL??? |?????? |

| location | varchar(30) | YES? |???? | NULL??? |?????? |

| salary?? | double(9,2) | YES? |???? | NULL??? |?????? |

+----------+-------------+------+-----+---------+-------+

4 rows in set (0.011 sec)

屬性名稱

類型與長度

中文含義

備注

c_id

char(6)

客戶標識

主鍵，非空

name

varchar(30)

客戶姓名

非空

location

varchar(30)

工作地點

salary

double(9,2)

工資

bank 的表結構

屬性名稱

類型與長度

中文含義

備注

b_id

char(5)

銀行標識

主鍵，非空

bank_name

char(30)

銀行名稱

非空

MariaDB [MyBank]> create table bank (

-> b_id char(5) primary key not null comment ‘銀行標識’,

-> bank_name char(30) not null comment ‘銀行名稱’

-> );

Query OK, 0 rows affected (0.021 sec)

MariaDB [MyBank]> desc bank;

+-----------+----------+------+-----+---------+-------+

| Field???? | Type???? | Null | Key | Default | Extra |

+-----------+----------+------+-----+---------+-------+

| b_id????? | char(5)? | NO?? | PRI | NULL??? |?????? |

| bank_name | char(30) | NO?? |???? | NULL??? |?????? |

+-----------+----------+------+-----+---------+-------+

2 rows in set (0.013 sec)

deposite 的表結構 (存款)

屬性名稱

類型與長度

中文含義

備注

d_id

int

存款流水號

主鍵，非空，自增

c_id

char(6)

客戶標識

外鍵，關聯customer表的c_id

b_id

char(5)

銀行標識

外鍵，關聯bank表的b_id

dep_date

date

存入日期

dep_type

int

存款期限

amount

double(9,3)

存款金額

MariaDB [MyBank]> create table deposite(

-> d_id int not null primary key auto_increment comment ‘存款流水號’,

-> c_id char(6) comment ‘客戶標識’,

-> b_id char(5) comment ‘銀行標識’,

-> dep_date date comment ‘存入日期’,

-> dep_type int comment ‘存款期限’,

-> amount double(9,3) comment ‘存款金額’,

-> constraint deposite_customer_fk foreign key(c_id) references customer(c_id),

-> constraint deposite_bank_fk foreign key(b_id) references bank(b_id)

-> );

Query OK, 0 rows affected (0.025 sec)

MariaDB [MyBank]> desc deposite;

+----------+-------------+------+-----+---------+----------------+

| Field??? | Type??????? | Null | Key | Default | Extra????????? |

+----------+-------------+------+-----+---------+----------------+

| d_id???? | int(11)???? | NO?? | PRI | NULL??? | auto_increment |

| c_id???? | char(6)???? | YES? | MUL | NULL??? |??????????????? |

| b_id???? | char(5)???? | YES? | MUL | NULL??? |??????????????? |

| dep_date | date??????? | YES? |???? | NULL??? |??????????????? |

| dep_type | int(11)???? | YES? |???? | NULL??? |??????????????? |

| amount?? | double(9,3) | YES? |???? | NULL??? |??????????????? |

+----------+-------------+------+-----+---------+----------------+

3． 錄入數據如下：

customer 的數據如下，注意最后一條記錄用你的學號和你的姓名代替

c_id

name

location

salary

101001

孫楊

廣州

1234

101002

郭海

南京

3526

101003

盧江

蘇州

6892

101004

郭惠

濟南

3492

你的學號(后六位)

你的姓名

北京

6324

MariaDB [MyBank]> insert into customer values(101001,"孫楊",'廣州',1234);

Query OK, 1 row affected (0.012 sec)

MariaDB [MyBank]> insert into customer values(101002,"郭海",'南京',3526);

Query OK, 1 row affected (0.002 sec)

MariaDB [MyBank]> insert into customer values(101003,"盧江",'蘇州',6892);

Query OK, 1 row affected (0.005 sec)

MariaDB [MyBank]> insert into customer values(101004,"郭惠",'濟南',3492);

Query OK, 1 row affected (0.005 sec)

MariaDB [MyBank]> insert into customer values(092519,"李春來",'北京',6324);

Query OK, 1 row affected (0.006 sec)

MariaDB [MyBank]> select *from customer;

+--------+--------+----------+---------+

| c_id?? | name?? | location | salary? |

+--------+--------+----------+---------+

| 101001 | 孫楊?? | 廣州???? | 1234.00 |

| 101002 | 郭海?? | 南京???? | 3526.00 |

| 101003 | 盧江?? | 蘇州???? | 6892.00 |

| 101004 | 郭惠?? | 濟南???? | 3492.00 |

| 092519? | 李春來 | 北京???? | 6324.00 |

+--------+--------+----------+---------+

bank 的數據如下：

b_id

bank_name

B0001

工商銀行

B0002

建設銀行

B0003

中國銀行

B0004

農業銀行

MariaDB [MyBank]> insert into bank values('B0001','工商銀行');

Query OK, 1 row affected (0.005 sec)

MariaDB [MyBank]> insert into bank values('B0002','建設銀行');

Query OK, 1 row affected (0.005 sec)

MariaDB [MyBank]> insert into bank values('B0003','中國銀行');

Query OK, 1 row affected (0.006 sec)

MariaDB [MyBank]> insert into bank values('B0004','農業銀行');

Query OK, 1 row affected (0.005 sec)

MariaDB [MyBank]> select *from bank;

+-------+-----------+

| b_id? | bank_name |

+-------+-----------+

| B0001 | 工商銀行? |

| B0002 | 建設銀行? |

| B0003 | 中國銀行? |

| B0004 | 農業銀行? |

+-------+-----------+

4 rows in set (0.000 sec)

deposite 的數據如下：

d_id

c_id

b_id

dep_date

dep_type

amount

1

101001

B0001

2011-04-05

3

42526

2

101002

B0003

2012-07-15

5

66500

3

101003

B0002

2010-11-24

1

42366

4

101004

B0004

2018-03-31

1

62362

5

101001

B0003

2012-02-07

3

56346

6

101002

B0001

2014-09-23

3

353626

7

101003

B0004

2015-12-14

5

36236

8

101004

B0002

2007-04-21

5

26267

9

101001

B0002

2011-02-11

1

435456

10

101002

B0004

2012-05-13

1

234626

11

101003

B0003

2020-01-24

5

26243

12

101004

B0001

2009-08-23

3

45671

MariaDB [MyBank]> insert into deposite values(1,'101001','B0001','2011-04-05',3,42526);

Query OK, 1 row affected (0.005 sec)

MariaDB [Mybank]> insert into deposite values(2,'101002','B0003','2012-07-15',5,66500);

Query OK, 1 row affected (0.005 sec)

MariaDB [Mybank]> insert into deposite values(3,'101003','B0002','2010-11-24',1,42366);

Query OK, 1 row affected (0.005 sec)

MariaDB [Mybank]> insert into deposite values(4,'101004','B0004','2018-03-31',1,62362);

Query OK, 1 row affected (0.010 sec)

MariaDB [Mybank]> insert into deposite values(5,'101001','B0003','2012-02-07',3,56346);

Query OK, 1 row affected (0.005 sec)

MariaDB [Mybank]> insert into deposite values(6,'101002','B0001','2014-09-23',3,353626);

Query OK, 1 row affected (0.010 sec)

MariaDB [Mybank]> insert into deposite values(7,'101003','B0004','2015-12-14',5,36236);

Query OK, 1 row affected (0.005 sec)

MariaDB [Mybank]> insert into deposite values(8,'101004','B0002','2007-04-21',5,26267);

Query OK, 1 row affected (0.005 sec)

MariaDB [Mybank]> insert into deposite values(9,'101001','B0002','2011-02-11',1,435456);

Query OK, 1 row affected (0.005 sec)

MariaDB [Mybank]> insert into deposite values(10,'101002','B0004','2012-05-13',1,234626);

Query OK, 1 row affected (0.009 sec)

MariaDB [Mybank]> insert into deposite values(11,'101003','B0003','2020-01-24',5,26243);

Query OK, 1 row affected (0.005 sec)

MariaDB [Mybank]> insert into deposite values(12,'101004','B0001','2009-08-23',3,45671);

Query OK, 1 row affected (0.005 sec)

MariaDB [Mybank]> select *from deposite;

+------+--------+-------+------------+----------+------------+

| d_id | c_id?? | b_id? | dep_date?? | dep_type | amount???? |

+------+--------+-------+------------+----------+------------+

|??? 1 | 101001 | B0001 | 2011-04-05 |??????? 3 |? 42526.000 |

|??? 2 | 101002 | B0003 | 2012-07-15 |??????? 5 |? 66500.000 |

|??? 3 | 101003 | B0002 | 2010-11-24 |??????? 1 |? 42366.000 |

|??? 4 | 101004 | B0004 | 2018-03-31 |??????? 1 |? 62362.000 |

|??? 5 | 101001 | B0003 | 2012-02-07 |??????? 3 |? 56346.000 |

|??? 6 | 101002 | B0001 | 2014-09-23 |??????? 3 | 353626.000 |

|??? 7 | 101003 | B0004 | 2015-12-14 |??????? 5 |? 36236.000 |

|??? 8 | 101004 | B0002 | 2007-04-21 |??????? 5 |? 26267.000 |

|??? 9 | 101001 | B0002 | 2011-02-11 |??????? 1 | 435456.000 |

|?? 10 | 101002 | B0004 | 2012-05-13 |??????? 1 | 234626.000 |

|?? 11 | 101003 | B0003 | 2020-01-24 |??????? 5 |? 26243.000 |

|?? 12 | 101004 | B0001 | 2009-08-23 |??????? 3 |? 45671.000 |

+------+--------+-------+------------+----------+------------+

12 rows in set (0.000 sec)

4． 更新 customer 表的 salary 屬性，將 salary 低于 5000 的客戶的 salary 變為原來的 2 倍.

MariaDB [Mybank]> select *from customer;

+--------+--------+----------+---------+

| c_id?? | name?? | location | salary? |

+--------+--------+----------+---------+

| 101001 | 孫楊?? | 廣州???? | 1234.00 |

| 101002 | 郭海?? | 南京???? | 3526.00 |

| 101003 | 盧江?? | 蘇州???? | 6892.00 |

| 101004 | 郭惠?? | 濟南???? | 3492.00 |

| 92519? | 李春來 | 北京???? | 6324.00 |

+--------+--------+----------+---------+

5 rows in set (0.000 sec)

MariaDB [Mybank]> update customer set salary=salary*2 where salary<5000;

Query OK, 3 rows affected (0.010 sec)

Rows matched: 3? Changed: 3? Warnings: 0

MariaDB [Mybank]> select *from customer;

+--------+--------+----------+---------+

| c_id?? | name?? | location | salary? |

+--------+--------+----------+---------+

| 101001 | 孫楊?? | 廣州???? | 2468.00 |

| 101002 | 郭海?? | 南京???? | 7052.00 |

| 101003 | 盧江?? | 蘇州???? | 6892.00 |

| 101004 | 郭惠?? | 濟南???? | 6984.00 |

| 92519? | 李春來 | 北京???? | 6324.00 |

+--------+--------+----------+---------+

5． 對 deposite 表進行統計，按銀行統計存款總數，顯示為 b_id,total.

MariaDB [Mybank]> select b_id,sum(amount) from deposite group by b_id;

+-------+-------------+

| b_id? | sum(amount) |

+-------+-------------+

| B0001 |? 441823.000 |

| B0002 |? 504089.000 |

| B0003 |? 149089.000 |

| B0004 |? 333224.000 |

+-------+-------------+

4 rows in set (0.000 sec)

6． 對 deposite 、customer 、bank 進行查詢，查詢條件為 location 在廣州、蘇州、濟南的客戶，存款在 300000 至 500000 之間的存款記錄， 顯示客戶姓名 name、銀行名稱 bank_name 、存款金額 amount.

MariaDB [mybank]> select name,bank_name,amount from bank,customer,deposite where deposite.c_id = customer.c_id and deposite.b_id = bank.b_id and amount > 30000 and amount < 50000 and location in (select location from customer where location="廣州" or location ="濟南" or location = "蘇州");

+------+-----------+-----------+

| name | bank_name | amount??? |

+------+-----------+-----------+

| 孫楊 | 工商銀行? | 42526.000 |

| 郭惠 | 工商銀行? | 45671.000 |

| 盧江 | 建設銀行? | 42366.000 |

| 盧江 | 農業銀行? | 36236.000 |

+------+-----------+-----------+

4 rows in set (0.001 sec)

7． 在 deposite 中插入一條記錄， 客戶標識 c_id 為你的學號，銀行標識 b_id 為 B0003,存款日期 dep_date 為當前系統日期，存款期限 type 為 3，存款金額 amount 為 50000

MariaDB [MyBank]> insert into deposite values(13,'092519','B0003','2020-11-28',3,50000);

Query OK, 1 row affected (0.004 sec)

MariaDB [MyBank]> select *from deposite;

+------+--------+-------+------------+----------+------------+

| d_id | c_id?? | b_id? | dep_date?? | dep_type | amount???? |

+------+--------+-------+------------+----------+------------+

|??? 1 | 101001 | B0001 | 2011-04-05 |??????? 3 |? 42526.000 |

|??? 2 | 101002 | B0003 | 2012-07-15 |??? ????5 |? 66500.000 |

|??? 3 | 101003 | B0002 | 2010-11-24 |??????? 1 |? 42366.000 |

|??? 4 | 101004 | B0004 | 2018-03-31 |??????? 1 |? 62362.000 |

|??? 5 | 101001 | B0003 | 2012-02-07 |??????? 3 |? 56346.000 |

|??? 6 | 101002 | B0001 | 2014-09-23 |??????? 3 | 353626.000 |

|??? 7 | 101003 | B0004 | 2015-12-14 |??????? 5 |? 36236.000 |

|??? 8 | 101004 | B0002 | 2007-04-21 |??????? 5 |? 26267.000 |

|??? 9 | 101001 | B0002 | 2011-02-11 |??????? 1 | 435456.000 |

|?? 10 | 101002 | B0004 | 2012-05-13 |??????? 1 | 234626.000 |

|?? 11 | 101003 | B0003 | 2020-01-24 |??????? 5 |? 26243.000 |

|?? 12 | 101004 | B0001 | 2009-08-23 |??????? 3 |? 45671.000 |

|?? 13 | 092519 | B0003 | 2020-11-28 |??????? 3 |? 50000.000 |

+------+--------+-------+------------+----------+------------+

13 rows in set (0.000 sec)

8． 完成以下題目：

(1) 在 bank 中插入一條新記錄 B0005,交通銀行；

MariaDB [MyBank]> insert into bank values ('B0005','交通銀行');

Query OK, 1 row affected (0.005 sec)

MariaDB [MyBank]> select * from bank;

+-------+-----------+

| b_id? | bank_name |

+-------+-----------+

| B0001 | 工商銀行? |

| B0002 | 建設銀行? |

| B0003 | 中國銀行? |

| B0004 | 農業銀行? |

| B0005 | 交通銀行? |

+-------+-----------+

5 rows in set (0.000 sec)

(2) 查詢今天到期的存款信息

MariaDB [MyBank]> select *from deposite where year(dep_date)+dep_type < year(now()) or if(year(dep_date)+dep_type=2020,( month(dep_date) <= month(now()) and dayofmonth(dep_date)

+------+--------+-------+------------+----------+------------+

| d_id | c_id?? | b_id? | dep_date?? | dep_type | amount???? |

+------+--------+-------+------------+----------+------------+

|??? 1 | 101001 | B0001 | 2011-04-05 |??????? 3 |? 42526.000 |

|??? 2 | 101002 | B0003 | 2012-07-15 |??????? 5 |? 66500.000 |

|??? 3 | 101003 | B0002 | 2010-11-24 |??????? 1 |? 42366.000 |

|??? 4 | 101004 | B0004 | 2018-03-31 |??????? 1 |? 62362.000 |

|??? 5 | 101001 | B0003 | 2012-02-07 |??????? 3 |? 56346.000 |

|??? 6 | 101002 | B0001 | 2014-09-23 |??????? 3 | 353626.000 |

|??? 8 | 101004 | B0002 | 2007-04-21 |??????? 5 |? 26267.000 |

|??? 9 | 101001 | B0002 | 2011-02-11 |??????? 1 | 435456.000 |

|?? 10 | 101002 | B0004 | 2012-05-13 |??????? 1 | 234626.000 |

|?? 12 | 101004 | B0001 | 2009-08-23 |??????? 3 |? 45671.000 |

+------+--------+-------+------------+----------+------------+

10 rows in set (0.000 sec)

(3) 查詢存款金額超過 50000 且存款期限為 3 年的存款信息

MariaDB [MyBank]> select *from deposite where amount > 50000 and dep_type=3;

+------+--------+-------+------------+----------+------------+

| d_id | c_id?? | b_id? | dep_date?? | dep_type | amount???? |

+------+--------+-------+------------+----------+------------+

|??? 5 | 101001 | B0003 | 2012-02-07 |??????? 3 |? 56346.000 |

|??? 6 | 101002 | B0001 | 2014-09-23 |??????? 3 | 353626.000 |

+------+--------+-------+------------+----------+------------+

2 rows in set (0.000 sec)

(4) 查詢前 3 名的存款信息

MariaDB [MyBank]> select *from deposite where d_id<4;

+------+--------+-------+------------+----------+-----------+

| d_id | c_id?? | b_id? | dep_date?? | dep_type | amount??? |

+------+--------+-------+------------+----------+-----------+

|??? 1 | 101001 | B0001 | 2011-04-05 |??????? 3 | 42526.000 |

|??? 2 | 101002 | B0003 | 2012-07-15 |??????? 5 | 66500.000 |

|??? 3 | 101003 | B0002 | 2010-11-24 | ???????1 | 42366.000 |

+------+--------+-------+------------+----------+-----------+

3 rows in set (0.000 sec)

(5) 查詢孫楊在中國銀行的存款信息

MariaDB [MyBank]> select name,bank_name,dep_date,dep_type,amount from bank join deposite on deposite.b_id = bank.b_id join customer on customer.c_id = deposite.c_id where name="孫楊" and bank_name="中國銀行";

+------+-----------+------------+----------+-----------+

| name | bank_name | dep_date?? | dep_type | amount??? |

+------+-----------+------------+----------+-----------+

| 孫楊 | 中國銀行? | 2012-02-07 |??????? 3 | 56346.000 |

+------+-----------+------------+----------+-----------+

1 row in set (0.000 sec)

(6) 查詢存款日期在 2012 年之后的農業銀行的存款信息，并按降序排列

MariaDB [MyBank]> select bank_name,d_id,c_id,deposite.b_id,dep_date,dep_type,amount from bank join deposite on bank.b_id = deposite.b_id where bank_name = '農業銀行' and year(dep_date) > 2012 order by dep_date desc;

+-----------+------+--------+-------+------------+----------+-----------+

| bank_name | d_id | c_id?? | b_id? | dep_date?? | dep_type | amount??? |

+-----------+------+--------+-------+------------+----------+-----------+

| 農業銀行? |??? 4 | 101004 | B0004 | 2018-03-31 |??????? 1 | 62362.000 |

| 農業銀行? |??? 7 | 101003 | B0004 | 2015-12-14 |??????? 5 | 36236.000 |

+-----------+------+--------+-------+------------+----------+-----------+

2 rows in set (0.000 sec)

源文件 鏈接：https://share.weiyun.com/2MlbdJ0l 密碼：fx2rak

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