四款mysql 分页存储过程实例_PHP教程-tutoriel php-php.cn

四款mysql 分页存储过程实例本文章收集了四款mysql 分页存储过程实例代码，有高效的分页存储过程以及入门级的和通用的存储过程分页代码，如果你正在学mysql分页存储过程就进来看看吧。

四款mysql教程分页存储过程实例
本文章收集了四款mysql 分页存储过程实例代码，有高效的分页存储过程以及入门级的和通用的存储过程分页代码，如果你正在学mysql分页存储过程就进来看看吧。
mysql测试版本：5.0.41-community-nt
/*****************************************************
mysql分页存储过程
吴剑 2009-07-02
*****************************************************/
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

一款高效的存储过程分页代码

存储过程分页的基本原理:我们先对查找到的记录集(支持输入查找条件_whereclause和排列条件_orderby)的key字段临时存放到临时表,然后构建真正的记录集输出。

create   procedure   `mysqltestuser_select_pageable`(
        _whereclause   varchar(2000),     --   查找条件
        _orderby   varchar(2000),     --   排序条件
        _pagesize     int   ,       --   每页记录数
        _pageindex   int   ,     --   当前页码
        _docount       bit       --   标志:统计数据/输出数据
)
        not   deterministic
        sql   security   definer
        comment   ' '
begin
--   定义key字段临时表
drop   table   if   exists   _temptable_keyid;     --   删除临时表,如果存在
create   temporary     table     _temptable_keyid
(
userid   int
)type=heap;

--   构建动态的sql，输出关键字key的id集合
--   查找条件
set   @sql   =   'select     userid   from   mysqltestuser ';
if   (_whereclause   is   not   null)     and   (_whereclause      ' ')   then
set   @sql=   concat(@sql,   '   where   '   ,_whereclause);
end   if;

if   (_orderby   is   not   null)     and     (_orderby   ' ')   then
set   @sql=   concat(   @sql   ,   '   order   by   '   ,   _orderby);
end   if;

--   准备id记录插入到临时表
set   @sql=concat( 'insert   into   _temptable_keyid(userid) ',   @sql);
prepare   stmt   from   @sql;
execute   stmt   ;
deallocate   prepare   stmt;
--   key的id集合     [end]

--   下面是输出
if   (_docount=1)   then     --   统计
          begin
                    select   count(*)   as   recordcount   from   _temptable_keyid;
          end;
else                                   --   输出记录集
          begin
                  --   计算记录的起点位置
set   @startpoint   =   ifnull((_pageindex-1)*_pagesize,0);
                  set   @sql= '                 select           a.*
      from       mysqltestuser   a
      inner   join   _temptable_keyid   b
      on     a.userid   =b.userid     ';

set   @sql=concat(@sql, "     limit     ",@startpoint, "   , ",_pagesize);
                  prepare   stmt   from   @sql;
execute   stmt   ;
deallocate   prepare   stmt;
          end;
end   if;

drop table _temptable_keyid;
end;

下面是mysqltestuser表的ddl:

create   table   `mysqltestuser`   (
    `userid`   int(11)   not   null   auto_increment,
    `name`   varchar(50)   default   null,
    `chinesename`   varchar(50)   default   null,
    `registerdatetime`   datetime   default   null,
    `jf`   decimal(20,2)   default   null,
    `description`   longtext,
    primary   key     (`userid`)
)   engine=innodb   default   charset=gb2312;

插入些数据:
insert   into   `mysqltestuser`   (`userid`,   `name`,   `chinesename`,   `registerdatetime`,   `jf`,   `description`)   values
    (1, 'xuu1 ', 'www.aimeige.com.cn ', '2007-03-29   12:54:41 ',1.5, 'description1 '),
    (2, 'xuu2 ', 'www.bKjia.c0m ', '2007-03-29   12:54:41 ',2.5, 'description2 '),

存储过程调用测试:

-- 方法原型 `mysqltestuser_select_pageable`(条件,排列顺序,每页记录数,第几页,是否统计数据)
-- call `mysqltestuser_select_pageable`(_whereclause ,_orderby ,_pagesize ,_pageindex , _docount)

--   统计数据
call   `mysqltestuser_select_pageable`(null,   null,   null,   null,   1)
--   输出数据,没条件限制,10条记录/页,第一页
call   `mysqltestuser_select_pageable`(null,   null,   10,   1,0)
--   输出数据,条件限制,排列,   10条记录/页,第一页
call   `mysqltestuser_select_pageable`( 'chinesename   like   ' '%飞3% ' ' ',   'userid   asc ',   10,   1,   0)

一款mysql .net的方法

mysql + asp教程.net来写网站，既然mysql已经支持存储过程了，那么像分页这么常用的东西，当然要用存储过程啦!
　　不过在网上找了一些，发现都有一个特点——就是不能传出总记录数，干脆自己研究吧。终于，算是搞出来了，效率可能不是很好，但是我也觉得不错了。贴代码吧直接：也算是对自己学习mysql的一个记录。
　　create procedure p_pagelist
　　(
　　m_pageno int ,
　　m_perpagecnt int ,
　　m_column varchar(1000) ,
　　m_table varchar(1000) ,
　　m_condition varchar(1000),
　　m_orderby varchar(200) ,
　　out m_totalpagecnt int
　　)
　　begin
　　set @pagecnt = 1; -- 总记录数
　　set @limitstart = (m_pageno - 1)*m_perpagecnt;
　　set @limitend = m_perpagecnt;
　　set @sqlcnt = concat('select count(1) into @pagecnt from ',m_table); -- 这条语句很关键，用来得到总数值
　　set @sql = concat('select ',m_column,' from ',m_table);
　　if m_condition is not null and m_condition '' then
　　set @sql = concat(@sql,' where ',m_condition);
　　set @sqlcnt = concat(@sqlcnt,' where ',m_condition);
　　end if;
　　if m_orderby is not null and m_orderby '' then
　　set @sql = concat(@sql,' order by ',m_orderby);
　　end if;
　　set @sql = concat(@sql, ' limit ', @limitstart, ',', @limitend);
　　prepare s_cnt from @sqlcnt;
　　execute s_cnt;
　　deallocate prepare s_cnt;
　　set m_totalpagecnt = @pagecnt;
　　prepare record from @sql;
　　execute record;
　　deallocate prepare record;
　　end

方法四

mysql的通用存储过程，本着共享的精神，为大家奉献这段mysql分页查询通用存储过程，假设所用数据库教程为guestbook：

use guestbook;
delimiter $$
drop procedure if exists prc_page_result $$
create procedure prc_page_result (
in currpage      int,
in columns       varchar(500),
in tablename     varchar(500),
in scondition    varchar(500),
in order_field   varchar(100),
in asc_field     int,
in primary_field varchar(100),
in pagesize      int
)
begin
    declare stemp varchar(1000);
    declare ssql   varchar(4000);
    declare sorder varchar(1000);

    if asc_field = 1 then
        set sorder = concat( order by , order_field, desc );
        set stemp =     else
        set sorder = concat( order by , order_field, asc );
        set stemp = >(select max;
    end if;

    if currpage = 1 then
        if scondition then
            set ssql = concat(select , columns, from , tablename, where );
            set ssql = concat(ssql, scondition, sorder, limit ?);
        else
            set ssql = concat(select , columns, from , tablename, sorder, limit ?);
        end if;
    else
        if scondition then
            set ssql = concat(select , columns, from , tablename);
            set ssql = concat(ssql, where , scondition, and , primary_field, stemp);
            set ssql = concat(ssql, (, primary_field, ), from (select );
            set ssql = concat(ssql, , primary_field, from , tablename, sorder);
            set ssql = concat(ssql, limit , (currpage-1)*pagesize, ) as tabtemp), sorder);
            set ssql = concat(ssql, limit ?);
        else
            set ssql = concat(select , columns, from , tablename);
            set ssql = concat(ssql, where , primary_field, stemp);
            set ssql = concat(ssql, (, primary_field, ), from (select );
            set ssql = concat(ssql, , primary_field, from , tablename, sorder);
            set ssql = concat(ssql, limit , (currpage-1)*pagesize, ) as tabtemp), sorder);
            set ssql = concat(ssql, limit ?);
        end if;
    end if;
    set @ipagesize = pagesize;
    set @squery = ssql;
    prepare stmt from @squery;
    execute stmt using @ipagesize;
end;
$$
delimiter;
可以存储为数据库脚本，然后用命令导入：

mysql -u root -p

调用：call prc_page_result(1, "*", "tablename", "", "columnname", 1, "pkid", 25);

*/
?>