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mysql学习记录（十）--存储过程_MySQL

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May 30, 2016 pm 05:10 PM
过程

mysql> use test1;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database change

mysql> select * from emp;
+------------+----------+------+--------+
| ename      | hiredate | sal  | deptno |
+------------+----------+------+--------+
| aaaaa      | NULL     | NULL |      1 |
| cccccccccc | NULL     | NULL |      2 |
| ddddddddd  | NULL     | NULL |      3 |
| ffffff     | NULL     | NULL |      4 |
| ggg        | NULL     | NULL |      5 |
| a1         | NULL     | NULL |      5 |
+------------+----------+------+--------+
6 rows in set (0.00 sec)

mysql> show create table emp \G;
*************************** 1. row ***************************
       Table: emp
Create Table: CREATE TABLE `emp` (
  `ename` varchar(10) DEFAULT NULL,
  `hiredate` date DEFAULT NULL,
  `sal` decimal(10,2) DEFAULT NULL,
  `deptno` int(2) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8
1 row in set (0.01 sec)

ERROR: 
No query specified

mysql> DELIMITER &&  
mysql> CREATE  PROCEDURE  num_from_employee (IN input_deptno int, OUT count_num INT )  
    -> READS SQL DATA  
    ->     BEGIN  
    ->     SELECT  COUNT(*) FROM emp WHERE  deptno=input_deptno ;  
    -> END  &&
Query OK, 0 rows affected (0.01 sec)

mysql> delimiter ;

mysql> call num_from_employee(5,@a);
+----------+
| COUNT(*) |
+----------+
|        2 |
+----------+
1 row in set (0.02 sec)

Query OK, 0 rows affected (0.02 sec)

mysql> call num_from_employee(1,@a);
+----------+
| COUNT(*) |
+----------+
|        1 |
+----------+
1 row in set (0.01 sec)

Query OK, 0 rows affected (0.01 sec)

mysql> create table inventory(
    -> film_id int(11),
    -> store_id int(11),
    -> inventory_in_stock varchar(50)
    -> ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
Query OK, 0 rows affected (0.02 sec)

mysql> insert into inventory(film_id,store_id,inventory_in_stock) values  (1,2,'aaaaaaaa'), (3,4,'bbbb'), (5,6,'cccccccccc'), (7,8,'dddddd'), (9,10,'fff');
Query OK, 5 rows affected (0.00 sec)
Records: 5  Duplicates: 0  Warnings: 0
 
mysql> select * from inventory;
+---------+----------+--------------------+
| film_id | store_id | inventory_in_stock |
+---------+----------+--------------------+
|       1 |        2 | aaaaaaaa           |
|       3 |        4 | bbbb               |
|       5 |        6 | cccccccccc         |
|       7 |        8 | dddddd             |
|       9 |       10 | fff                |
+---------+----------+--------------------+
5 rows in set (0.00 sec)

mysql> delimiter $$
mysql> create procedure film_in_stock(in p_film_id int,in p_store_id int,out p_film_count int) 
    -> reads sql data
    -> begin
    ->   select film_id
    ->   from inventory
    ->   where film_id = p_film_id
    ->   and store_id = p_store_id;
    ->   select found_rows() into p_film_count;
    -> end $$
Query OK, 0 rows affected (0.01 sec)

mysql> delimiter ;
mysql> call film_in_stock(5,6,@a);
+---------+
| film_id |
+---------+
|       5 |
+---------+
1 row in set (0.01 sec)

Query OK, 1 row affected (0.01 sec)

mysql> show create procedure film_in_stock \G;
*************************** 1. row ***************************
           Procedure: film_in_stock
            sql_mode: 
    Create Procedure: CREATE DEFINER=`root`@`localhost` PROCEDURE `film_in_stock`(in p_film_id int,in p_store_id int,out p_film_count int)
    READS SQL DATA
begin
  select film_id
  from inventory
  where film_id = p_film_id
  and store_id = p_store_id;
  select found_rows() into p_film_count;
end
character_set_client: utf8
collation_connection: utf8_general_ci
  Database Collation: utf8_general_ci
1 row in set (0.01 sec)

ERROR: 
No query specified

mysql> create table actor(
    -> actor_id int(11)  NOT NULL AUTO_INCREMENT ,  
    -> first_name varchar(30),
    -> last_name varchar(30),
    ->   PRIMARY KEY (actor_id)  
    -> ) engine = innodb charset = utf8;
Query OK, 0 rows affected (0.02 sec)


mysql> delimiter $$
mysql> create procedure actor_insert()
    -> begin 
    -> set @x = 1;
    -> insert into actor(actor_id,first_name,last_name) values (201,'Test',201);
    -> set @x = 2;
    -> insert into actor(actor_id,first_name,last_name) values(1,'Test','1');
    -> set @x = 3;
    -> end $$
Query OK, 0 rows affected (0.01 sec)

mysql> call actor_insert();
Query OK, 0 rows affected (0.02 sec)

mysql> call actor_insert();
ERROR 1062 (23000): Duplicate entry '201' for key 'PRIMARY'
mysql> select @x;
+------+
| @x   |
+------+
|    1 |
+------+
1 row in set (0.00 sec)

mysql> delimiter $$
mysql> create procedure actor_insert_new()
    -> begin 
    -> DECLARE CONTINUE HANDLER FOR SQLSTATE '23000' SET @x2 = 1;
    -> set @x = 1;
    -> insert into actor(actor_id,first_name,last_name) values (201,'Test',201);
    -> set @x = 2;
    -> insert into actor(actor_id,first_name,last_name) values(1,'Test','1');
    -> set @x = 3;
    -> end $$
Query OK, 0 rows affected (0.02 sec)

mysql> delimiter ;

mysql> call actor_insert_new();
Query OK, 0 rows affected, 1 warning (0.01 sec)

mysql> call actor_insert_new();
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> select @x,@x2;
+------+------+
| @x   | @x2  |
+------+------+
|    3 |    1 |
+------+------+
1 row in set (0.00 sec)

mysql> show create table payment \G;
*************************** 1. row ***************************
       Table: payment
Create Table: CREATE TABLE `payment` (
  `staff_id` int(11) DEFAULT NULL,
  `amount` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8
1 row in set (0.01 sec)

ERROR: 
No query specified

mysql> select * from payment;
+----------+--------+
| staff_id | amount |
+----------+--------+
|        1 |  10000 |
|        2 |  20000 |
|        3 |  30000 |
|        4 | 400000 |
|        5 | 500000 |
+----------+--------+
5 rows in set (0.01 sec)

mysql> delimiter $$
mysql> create procedure payment_stat()
    -> begin
    -> DECLARE i_staff_id int;
    -> DECLARE d_amount int;
    -> declare tmp_name varchar(30) default "";
    -> DECLARE cur_payment cursor for select staff_id,amount from payment;
    -> DECLARE EXIT HANDLER FOR NOT FOUND CLOSE cur_payment;
    -> 
    -> set @x1 = 0 ;
    -> set @x2 = 0 ;
    -> 
    -> open cur_payment;
    -> fetch cur_payment into i_staff_id,d_amount;
    -> while(i_staff_id <=3  )
    -> do
    ->     if i_staff_id < 3 then 
    ->         select i_staff_id,d_amount;
    ->     end if;
    -> fetch cur_payment into  i_staff_id,d_amount;
    -> end while;
    -> close cur_payment;
    -> 
    -> select @x1,@x2;
    -> end;
    -> $$
Query OK, 0 rows affected (0.01 sec)

mysql> delimiter ;

mysql> call  payment_stat();
+------------+----------+
| i_staff_id | d_amount |
+------------+----------+
|          1 |    10000 |
+------------+----------+
1 row in set (0.01 sec)

+------------+----------+
| i_staff_id | d_amount |
+------------+----------+
|          2 |    20000 |
+------------+----------+
1 row in set (0.01 sec)

+------+------+
| @x1  | @x2  |
+------+------+
|    0 |    0 |
+------+------+
1 row in set (0.01 sec)

Query OK, 0 rows affected (0.01 sec)

mysql> drop  procedure payment_stat;
Query OK, 0 rows affected (0.00 sec)


mysql> delimiter $$
mysql> create procedure payment_stat()
    -> begin
    -> DECLARE i_staff_id int;
    -> DECLARE d_amount int;
    -> declare tmp_name varchar(30) default "";
    -> DECLARE cur_payment cursor for select staff_id,amount from payment;
    -> DECLARE EXIT HANDLER FOR NOT FOUND CLOSE cur_payment;
    -> 
    -> set @x1 = 0 ;
    -> set @x2 = 0 ;
    -> 
    -> open cur_payment;
    -> fetch cur_payment into i_staff_id,d_amount;
    -> while(i_staff_id <=3  )
    -> do
    ->     if i_staff_id < 3 then 
    ->         set @x1 = @x1+ i_staff_id;
    ->     else
    ->         set @x2 = @x2+ d_amount;
    ->     end if;
    -> fetch cur_payment into  i_staff_id,d_amount;
    -> end while;
    -> close cur_payment;
    -> 
    -> select @x1,@x2;
    -> end;
    -> $$
Query OK, 0 rows affected (0.01 sec)

mysql> call  payment_stat();
    -> $$
+------+-------+
| @x1  | @x2   |
+------+-------+
|    3 | 30000 |
+------+-------+
1 row in set (0.01 sec)

Query OK, 0 rows affected (0.01 sec)


mysql> delimiter $$
mysql> create procedure payment_stat()
    -> begin
    -> DECLARE i_staff_id int;
    -> DECLARE d_amount int;
    -> 
    -> DECLARE cur_payment cursor for select staff_id,amount from payment;
    -> DECLARE EXIT HANDLER FOR NOT FOUND CLOSE cur_payment;
    -> 
    -> set @x1 = 0 ;
    -> set @x2 = 0 ;
    -> 
    -> open cur_payment;
    -> fetch cur_payment into i_staff_id,d_amount;
    -> while(i_staff_id <=3  )
    -> do
    ->     if i_staff_id < 3 then 
    ->         set @x1 = @x1+ i_staff_id + 1;
    ->     else
    ->         set @x2 = @x2+ d_amount ;
    ->     end if;
    -> fetch cur_payment into  i_staff_id,d_amount;
    -> end while;
    -> close cur_payment;
    -> 
    -> select @x1,@x2;
    -> end;
    -> $$
Query OK, 0 rows affected (0.00 sec)

mysql> delimiter ;
mysql> call  payment_stat();
+------+-------+
| @x1  | @x2   |
+------+-------+
|    3 | 30000 |
+------+-------+
1 row in set (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

mysql> drop  procedure payment_stat;
Query OK, 0 rows affected (0.00 sec)


mysql> delimiter $$
mysql> create procedure payment_stat()
    -> begin
    -> DECLARE i_staff_id int;
    -> DECLARE d_amount int;
    -> 
    -> DECLARE cur_payment cursor for select staff_id,amount from payment;
    -> DECLARE EXIT HANDLER FOR NOT FOUND CLOSE cur_payment;
    -> 
    -> set @x1 = 0 ;
    -> set @x2 = 0 ;
    -> 
    -> open cur_payment;
    -> fetch cur_payment into i_staff_id,d_amount;
    -> while(i_staff_id <=3  )
    -> do
    ->     if i_staff_id < 3 then 
    ->         set @x1 = @x1+ i_staff_id;
    ->     else
    ->         set @x2 = @x2+ d_amount;
    ->     end if;
    -> fetch cur_payment into  i_staff_id,d_amount;
    -> end while;
    -> close cur_payment;
    -> 
    -> select @x1,@x2;
    -> end;
    -> $$
Query OK, 0 rows affected (0.00 sec)


mysql> delimiter ;
mysql> call  payment_stat();
+------+-------+
| @x1  | @x2   |
+------+-------+
|    3 | 30000 |
+------+-------+
1 row in set (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

mysql> delimiter $$
mysql> create procedure payment_stat()
    -> begin
    -> DECLARE i_staff_id int;
    -> DECLARE d_amount int;
    -> 
    -> DECLARE cur_payment cursor for select staff_id,amount from payment;
    -> DECLARE EXIT HANDLER FOR NOT FOUND CLOSE cur_payment;
    -> 
    -> set @x1 = 0 ;
    -> set @x2 = 0 ;
    -> 
    -> open cur_payment;
    -> fetch cur_payment into i_staff_id,d_amount;
    -> while(i_staff_id <=3  )
    -> do
    ->     if i_staff_id < 3 then 
    ->         set @x1 = @x1+ i_staff_id + 1;
    ->     else
    ->         set @x2 = @x2+ d_amount;
    ->     end if;
    -> fetch cur_payment into  i_staff_id,d_amount;
    -> end while;
    -> close cur_payment;
    -> 
    -> select @x1,@x2;
    -> end;
    -> $$
Query OK, 0 rows affected (0.01 sec)

mysql> delimiter ;
mysql> call  payment_stat();
+------+-------+
| @x1  | @x2   |
+------+-------+
|    5 | 30000 |
+------+-------+
1 row in set (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

mysql> drop  procedure payment_stat;
Query OK, 0 rows affected (0.02 sec)


mysql> delimiter $$
mysql> create procedure payment_stat()
    -> begin
    -> DECLARE i_staff_id int;
    -> DECLARE d_amount int;
    -> 
    -> DECLARE cur_payment cursor for select staff_id,amount from payment;
    -> DECLARE EXIT HANDLER FOR NOT FOUND CLOSE cur_payment;
    -> 
    -> set @x1 = 0 ;
    -> set @x2 = 0 ;
    -> 
    -> open cur_payment;
    -> fetch cur_payment into i_staff_id,d_amount;
    -> while(i_staff_id <=3  )
    -> do
    ->     if i_staff_id < 3 then 
    ->         set @x1 = @x1+ i_staff_id + 6;
    ->     else
    ->         set @x2 = @x2+ d_amount + 5;
    ->     end if;
    -> fetch cur_payment into  i_staff_id,d_amount;
    -> end while;
    -> close cur_payment;
    -> 
    -> select @x1,@x2;
    -> end;
    -> $$
Query OK, 0 rows affected (0.01 sec)

mysql> delimiter ;

mysql> call  payment_stat();
   
+------+-------+
| @x1  | @x2   |
+------+-------+
|   15 | 30005 |
+------+-------+
1 row in set (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

mysql> DELIMITER $$
mysql> 
mysql> CREATE PROCEDURE addNum()
    -> BEGIN
    -> DECLARE x  INT;
    -> SET x = 0;
    -> for_loop :  LOOP
    ->   SET  x = x + 1;
    ->   IF  x > 30 THEN
    ->    LEAVE  for_loop;
    ->   END IF;
    ->   IF mod(x,2) = 0 then 
    ->     select "num:",x;
    ->   ITERATE for_loop;
    ->   END IF;
    -> END LOOP;
    -> select "count:",x;
    -> END $$
Query OK, 0 rows affected (0.01 sec)

mysql> call addNum();
    -> $$
+------+------+
| num: | x    |
+------+------+
| num: |    2 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |    4 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |    6 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |    8 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   10 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   12 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   14 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   16 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   18 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   20 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   22 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   24 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   26 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   28 |
+------+------+
1 row in set (0.00 sec)

+------+------+
| num: | x    |
+------+------+
| num: |   30 |
+------+------+
1 row in set (0.00 sec)

+--------+------+
| count: | x    |
+--------+------+
| count: |   31 |
+--------+------+
1 row in set (0.00 sec)

Query OK, 0 rows affected (0.00 sec)

mysql> delimiter $$
mysql> create procedure repeatPractise()
    ->      begin
    ->      set @v = 0 ;
    ->      REPEAT 
    ->         set @v =  @v+ 1;
    ->      UNTIL @v >=5  
    ->      END REPEAT;
    ->  END 
    ->  $$
Query OK, 0 rows affected (0.01 sec)

mysql> call repeatPractise();
    -> $$
Query OK, 0 rows affected (0.00 sec)

mysql> select @v;
    -> $$
+------+
| @v   |
+------+
|    5 |
+------+
1 row in set (0.00 sec)

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这个项目正在迁移到osdn.net/projects/mingw的过程中，你可以继续在那里关注我们。MinGW：GNU编译器集合（GCC）的本地Windows移植版本，可自由分发的导入库和用于构建本地Windows应用程序的头文件；包括对MSVC运行时的扩展，以支持C99功能。MinGW的所有软件都可以在64位Windows平台上运行。

mPDF

mPDF

mPDF是一个PHP库，可以从UTF-8编码的HTML生成PDF文件。原作者Ian Back编写mPDF以从他的网站上“即时”输出PDF文件，并处理不同的语言。与原始脚本如HTML2FPDF相比，它的速度较慢，并且在使用Unicode字体时生成的文件较大，但支持CSS样式等，并进行了大量增强。支持几乎所有语言，包括RTL（阿拉伯语和希伯来语）和CJK（中日韩）。支持嵌套的块级元素（如P、DIV），

DVWA

DVWA

Damn Vulnerable Web App (DVWA) 是一个PHP/MySQL的Web应用程序，非常容易受到攻击。它的主要目标是成为安全专业人员在合法环境中测试自己的技能和工具的辅助工具，帮助Web开发人员更好地理解保护Web应用程序的过程，并帮助教师/学生在课堂环境中教授/学习Web应用程序安全。DVWA的目标是通过简单直接的界面练习一些最常见的Web漏洞，难度各不相同。请注意，该软件中

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