mysql 分页存储过程

/*
--名称：MYSQL版查询分页存储过程 by peace 2013-8-14
--输入参数：@fields -- 要查询的字段用逗号隔开
--输入参数：@tables -- 要查询的表
--输入参数：@where -- 查询条件
--输入参数：@orderby -- 排序字段
--输出参数：@page -- 当前页计数从1开始
--输出参数：@pagesize -- 每页大小
--输出参数：@totalcount -- 总记录数
--输出参数：@pagecount -- 总页数
*/
DROP PROCEDURE IF EXISTS Query_Pagination;
CREATE PROCEDURE Query_Pagination
(
in _fields varchar(2000),
in _tables text,
in _where varchar(2000),
in _orderby varchar(200),
in _pageindex int,
in _pagesize int,
in _sumfields varchar(200),/*增加统计字段2013-5-8 peaceli*/
out _totalcount int ,
out _pagecount int
)
begin
set @startRow = _pageSize*(_pageIndex -1);
set @pageSize = _pageSize; set @rowindex = 0;
set @strsql = CONCAT('select sql_calc_found_rows @rowindex:=@rowindex+1 as rownumber,',_fields,' from ',_tables,case ifnull(_where,'') when '' then '' else concat(' where ',_where) end,' order by ',_orderby,' limit ',@startRow,',',@pageSize);
prepare strsql from @strsql;
execute strsql;
deallocate prepare strsql;
set _totalcount = found_rows();

if (_totalcount <= _pageSize) then
set _pagecount = 1;
else if (_totalcount % _pageSize > 0) then
set _pagecount = _totalcount / _pageSize + 1;
else
set _pagecount = _totalcount / _pageSize;
end if;
end if;
if(ifnull(_sumfields,'') <> '') then set @sumsql = contact('select ',_sumfields,' from ',_tables,case ifnull(_where,'') when '' then '' else concat(' where ',_where) end); prepare sumsql from @sumsql; execute sumsql; deallocate prepare sumsql; end if; end

 

转载：https://www.cnblogs.com/peaceli/archive/2013/08/14/MYSQL.html