实例解析MySQL中的存储过程及存储过程的调用方法

mysql>create database db_proc;

mysql>CREATE TABLE `proc_test` (
 `id` tinyint(4) NOT NULL AUTO_INCREMENT, #ID,自动增长
 `username` varchar(20) NOT NULL, #用户名
 `password` varchar(20) NOT NULL, #密码
 PRIMARY KEY (`id`) #主键
 ) ENGINE=MyISAM AUTO_INCREMENT=50 DEFAULT CHARSET=utf8; #设置表引擎和字符集

create procedure mytest(in name varchar(20),in pwd varchar(20))#定义传入的参数
 begin
 insert into proc_test(username,password) values(name,pwd);
#把传进来的参数name和pwd插入表中，别忘记分号
 end; #注意这个分号别忘记了

create procedure mytest(in name varchar(20),in pwd varchar(20))#定义传入的参数
 begin
 insert into proc_test(username,password) values(name,pwd);
#把传进来的参数name和pwd插入表中，别忘记分号
 end; #注意这个分号别忘记了

select * from proc_test where username=‘绝心是凉白开';#如果有内容说明成功了

drop procdure 存储过程名;

DROP PROCEDURE IF EXISTS pr_pager; 
CREATE PROCEDURE pr_pager( 
  IN   p_table_name    VARCHAR(1024),    /*表名*/ 
  IN   p_fields      VARCHAR(1024),    /*查询字段*/ 
  IN   p_page_size     INT,         /*每页记录数*/ 
  IN   p_page_now     INT,         /*当前页*/ 
  IN   p_order_string   VARCHAR(128),     /*排序条件(包含ORDER关键字,可为空)*/  
  IN   p_where_string   VARCHAR(1024),    /*WHERE条件(包含WHERE关键字,可为空)*/   
  OUT  p_out_rows     INT          /*输出记录总数*/   
) 
NOT DETERMINISTIC 
SQL SECURITY DEFINER 
COMMENT '分页存储过程' 
   
BEGIN 
 
  /*定义变量*/ 
  DECLARE m_begin_row INT DEFAULT 0; 
  DECLARE m_limit_string CHAR(64); 
 
  /*构造语句*/   
  SET m_begin_row = (p_page_now - 1) * p_page_size; 
  SET m_limit_string = CONCAT(' LIMIT ', m_begin_row, ', ', p_page_size); 
   
  SET @COUNT_STRING = CONCAT('SELECT COUNT(*) INTO @ROWS_TOTAL FROM ', p_table_name, ' ', p_where_string); 
  SET @MAIN_STRING = CONCAT('SELECT ', p_fields, ' FROM ', p_table_name, ' ', p_where_string, ' ', p_order_string, m_limit_string); 
 
  /*预处理*/ 
  PREPARE count_stmt FROM @COUNT_STRING; 
  EXECUTE count_stmt; 
  DEALLOCATE PREPARE count_stmt; 
  SET p_out_rows = @ROWS_TOTAL; 
 
  PREPARE main_stmt FROM @MAIN_STRING; 
  EXECUTE main_stmt; 
  DEALLOCATE PREPARE main_stmt; 
   
END; 

call pr_pager('表名', '*', 25, 1, '', '', @count_rows); 
call pr_pager('user', '*', 15, 2, '', 'where id>3', @count_rows); 
call pr_pager('user', '*', 15, 1, 'group by password order by id desc', '', @count_rows); 

select @count_rows;  
select @MAIN_STRING //select sql 
select @COUNT_STRING //seelct count sql 

<"CALL dbpi_temp.dumpSingleReportForm41($sys_report_id);"; 
  $result = $this->dbConn->query($sql); 
  if (mysql_error()) { 
    die (mysql_error().'<b>:</b> dump_single_form41report(...)['.__LINE__.'];<br>'.$sql); 
  } 
  return $result; 
} 
 
function initQueuePool($sys_report_id, $username){ 
  $this->dbConn->setFetchMode(DB_FETCHMODE_ASSOC); 
  $this->checkPreviousThread($sys_report_id, $username); 
 
  $temptablename = "_".$username."_".$sys_report_id; 
  $sql = "SET @a=".$sys_report_id.";"; 
  $this->dbConn->query($sql); 
  $sql = "SET @b='".DB_REPORT.".".$temptablename."';"; 
  $this->dbConn->query($sql); 
  $sql = "SET @c='".DB_PREPRODUCT."';"; 
  $this->dbConn->query($sql); 
  $sql = "CALL ".DB_REPORT.".fm41_simpleproc(@a,@b,@c);"; 
  $this->dbConn->query($sql); 
}  

<"call pr_pager('change_monitor','*',10,1,'','',@p_out_rows)"); 
while($rows=mysql_fetch_array($rs)){ 
  echo $rows[Schedule]; 
} 
$query=mysql_query("select @p_out_rows"); 
$v=mysql_fetch_array($query);  
can't return a result set in the given context

define('CLIENT_MULTI_RESULTS', 131072);

$link = mysql_connect("127.0.0.1", "root", "",1,CLIENT_MULTI_RESULTS) or die("Could not connect: ".mysql_error());