mysql存储过程通用分页

关键字：mysql存储过程通用分页


sql代码如下：


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;


调用方式如下：


call prc_page_result(1, "*", "test", "1=1", "name", 0, "sys_id", 25);


下面是解释：
call prc_page_result(当前页, "要查询的字段列表或*", "表名称", "条件", "排序字段", 排序方式0正序1倒序, "主键字段", 每页长度);


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