Mysql分页查询通用存储过程

出处：http://blog.csdn.net/fcrpg2005/article/details/1522713

我稍微解释一下传进去的参数：

    currpage:你想要访问的第几页

    columns:你想要得到的列，所有可以填‘*’，部分可以填'column_1,column_2'

   tablename:表名

  sCondition:where后面的搜索条件，比如填写column_1 = 'hello mysql proc'

  order_field:order by后面的语句，比如填写column_1

  asc_field:如果设置为0则表示降序，否则为升序

  primary_field:主键

  page_size:一页多少条数据

前段时间没有给出SQLServer转到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  = '<(select min';    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 < pageResult.sql;

调用：call prc_page_result(1, "*", "Tablename", "", "columnname", 1, "PKID", 25);

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