MySQL分頁(yè)查詢通用存儲(chǔ)過(guò)程的解剖
以下的文章主要向大家描述的是MySQL分頁(yè)查詢通用存儲(chǔ)過(guò)程的實(shí)際應(yīng)用,我在一個(gè)信譽(yù)度很好的網(wǎng)站找到一個(gè)關(guān)于MySQL分頁(yè)查詢通用存儲(chǔ)過(guò)程的實(shí)際應(yīng)用資料,拿出來(lái)供大家分享,望大家能有所收獲。
前段時(shí)間沒(méi)有給出SQLServer轉(zhuǎn)到MySQL(和PHP搭配之***組合)的通用存儲(chǔ)過(guò)程,本著共享的精神,為大家奉獻(xiàn)這段MySQL分頁(yè)查詢通用存儲(chǔ)過(guò)程,假設(shè)所用數(shù)據(jù)庫(kù)為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 Prima(最完善的虛擬主機(jī)管理系統(tǒng))ry_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 ', Prima(最完善的虛擬主機(jī)管理系統(tǒng))ry_field, sTemp);
- set sSql = concat(sSql, '(', Prima(最完善的虛擬主機(jī)管理系統(tǒng))ry_field, ')', ' from (select ');
- set sSql = concat(sSql, ' ', Prima(最完善的虛擬主機(jī)管理系統(tǒng))ry_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 ', Prima(最完善的虛擬主機(jī)管理系統(tǒng))ry_field, sTemp);
- set sSql = concat(sSql, '(', Prima(最完善的虛擬主機(jī)管理系統(tǒng))ry_field, ')', ' from (select ');
- set sSql = concat(sSql, ' ', Prima(最完善的虛擬主機(jī)管理系統(tǒng))ry_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;
可以存儲(chǔ)為數(shù)據(jù)庫(kù)腳本,然后用命令導(dǎo)入:
MySQL(和PHP搭配之***組合) -u root -p < pageResult.sql;
調(diào)用:
- call prc_page_result(1, "*", "Tablename", "", "columnname", 1, "PKID", 25);
上述的相關(guān)內(nèi)容就是對(duì)MySQL分頁(yè)查詢通用存儲(chǔ)過(guò)程的描述,希望會(huì)給你帶來(lái)一些幫助在此方面。
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