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php调用mysql存储过程实例分析

Jun 06, 2016 pm 08:15 PM
mysql php stored procedure transfer

这篇文章主要介绍了php调用mysql存储过程,综合各种常见实例分析了php调用mysql存储过程的各种常见操作与使用技巧,具有一定的参考借鉴价值,需要的朋友可以参考下

本文实例分析了mysqldata/mysql/20140716116128.html">php调用mysql存储过程的方法。分享给大家供大家参考。具体分析如下:

Mysql存储过程创建语法,代码如下:

CREATE PROCEDURE和CREATE FUNCTION :

复制代码 代码如下:

CREATE PROCEDURE sp_name ([proc_parameter[,...]])
 
    [characteristic ...] routine_body
 
CREATE FUNCTION sp_name ([func_parameter[,...]])
 
    RETURNS type
 
    [characteristic ...] routine_body
 
    proc_parameter:
 
    [ IN | OUT | INOUT ] param_name type
 
    func_parameter:
 
    param_name type
 
type:
 
    Any valid MySQL data type
 
characteristic:
 
    LANGUAGE SQL
 
  | [NOT] DETERMINISTIC
 
  | { CONTAINS SQL | NO SQL | READS SQL DATA | MODIFIES SQL DATA }
 
  | SQL SECURITY { DEFINER | INVOKER }
 
  | COMMENT 'string'
 
routine_body:
 
    Valid SQL procedure statement or statements


当我们看完以后,就可以开始写一些简单的存储过程了,首先建立存储过程, Create procedure(子程序)、Create function(函数),代码如下:

复制代码 代码如下:

Create procedure sp_Name ([proc_parameter ])
routine_body

这里的参数类型可以是 IN OUT INOUTT,意思和单词的意思是一样的,IN 表示是传进来的参数,OUT 是表示传出去的参数,INOUT 是表示传进来但最终传回的参数,代码如下:

复制代码 代码如下:

Create functionsp_Name ([func_parameter ])
Returns type
Routine_body

Returns type 指定了返回的类型,这里给定的类型与返回值的类型要是一样的,否则会报错,下面是一个简单的例子,代码如下:

复制代码 代码如下:

mysql> delimiter //
mysql> create procedure g
    -> begin
    -> select version() i
    -> end
    -> //
Query OK, 0 rows affected
 
mysql> call getversion(@a
    -> //
Query OK, 0 rows affected
 
mysql> select @a;
    -> //
+---------------------+
| @a                  |
+---------------------+
| 5.0.45-community-nt |
+---------------------+
1 row in set (0.05 sec)


一个获取当前mysql版本的存储过程.那么php怎么与mysql的存储过程相结合呢.以下来自百度知道,代码如下:

复制代码 代码如下:

Drop table if exists user;  
    Create table user(  
        Id int unsigned not null auto_increment,  
        Name varchar(20) not null,  
        Pwd char(32) not null,  
        Primary key(Id)  
);


添加用户的存储过程,代码如下:

复制代码 代码如下:

Delimiter //  
    Create procedure insertuser(in username varchar(20),in userpwd varchar(32))  
    Begin  
        Insert into welefen.user(Name,Pwd) values (username,md5(userpwd));  
    End  
    //


验证用户的存储过程,代码如下:

复制代码 代码如下:

Delimiter //  
    Create procedure validateuser(in username varchar(20),out param1)  
    Begin   
        Select Pwd into param1 from welefen.user where Name=username;  
    End  
    //


修改密码的存储过程,代码如下:

复制代码 代码如下:

Delimiter //  
    Create procedure modifyPwd(in username varchar(20),in userpwd varchar(32))  
    Begin  
        Update welefen.user set Pwd=md5(userpwd) where Name=username;  
    End  
    //


删除用户的存储过程,代码如下:

复制代码 代码如下:

Delimiter //  
    Create procedure deleteuser(in username varchar(20)) 
Begin  
         delete from welefen.user where Name=username;  
    End  
    //


在客户端,我们给出如下的程序,代码如下:

复制代码 代码如下:

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