mysql 通用存储过程分页 海量数据分页

测试表

 

CREATE TABLE IF NOT EXISTS `test` (
   `id` int(11) NOT NULL auto_increment,
   `sort` int(11)
   `title` varchar(50),
   PRIMARY KEY  (`id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=gb2312 AUTO_INCREMENT=1 ;

 

 

存储过程代码

 

DELIMITER $$;
 DROP PROCEDURE IF EXISTS `sp_page`$$
 CREATE PROCEDURE `sp_page`(
  in _pagecurrent int,/*当前页*/
  in _pagesize int,/*每页的记录数*/
  in _ifelse varchar(1000),/*显示字段*/
  in _where varchar(1000),/*条件*/
  in _order varchar(1000)/*排序*/
 )
 COMMENT '分页存储过程'
 BEGIN
  if _pagesize<=1 then 
   set _pagesize=20;
  end if;
  if _pagecurrent < 1 then 
   set _pagecurrent = 1; 
  end if;
  
  set @strsql = concat('select ',_ifelse,' from ',_where,' ',_order,' limit ',_pagecurrent*_pagesize-_pagesize,',',_pagesize); 
  prepare stmtsql from @strsql; 
  execute stmtsql; 
  deallocate prepare stmtsql;  set @strsqlcount=concat('select count(1) as count from ',_where);/*count(1) 这个字段最好是主键*/
  prepare stmtsqlcount from @strsqlcount; 
  execute stmtsqlcount; 
  deallocate prepare stmtsqlcount; 
 END$$
 DELIMITER ;$$  
 调用代码
 调用例1  call sp_Page(1,3,'*','test','order by id desc');
 调用例2  call sp_Page(1,3,'*','test where sort=1','order by id desc');
 调用例3  call sp_Page(1,3,'id,title','test where sort=1','order by id desc');