復制代碼 代碼如下:

p_cloumns varchar(500),p_tables varchar(100),p_where varchar(4000),p_order varchar(100),p_pageindex int,p_pagesize int,out p_recordcount int,out p_pagecount int

$:begin
declare v_sqlcounts varchar(4000);
declare v_sqlselect varchar(4000);
#拼接查詢總記錄的SQL語句
set v_sqlcounts = concat('select count(*) into @recordcount from ',p_tables,p_where);
#select v_sqlcounts;leave $;
set @sqlcounts = v_sqlcounts;
prepare stmt from @sqlcounts;
execute stmt;
deallocate prepare stmt;
#獲取動態SQL語句返回值
set p_recordcount = @recordcount;
#根據總記錄跳數計算出總頁數
set p_pagecount = ceiling((p_recordcount+0.0)/p_pagesize);
if p_pageindex <1 then
set p_pageindex = 1;
elseif p_pageindex > p_pagecount and p_pagecount <> 0 then
set p_pageindex = p_pagecount;
end if;
#拼接分頁查詢記錄的動態SQL語句
set v_sqlselect = concat('select ',p_cloumns,' from ',p_tables,p_where,if(p_order is not null,p_order,''),' limit ',(p_pageindex-1)*p_pagesize,' , ',p_pagesize);
#select v_sqlselect;leave $;
set @sqlselect = v_sqlselect;
prepare stmtselect from @sqlselect;
execute stmtselect;
deallocate prepare stmtselect;
end $

復制代碼 代碼如下:

#拼接查詢總記錄的SQL語句
set v_sqlcounts = concat('select count(*) into @recordcount from ',v_tables,v_where);
set @sqlcounts := v_sqlcounts;
#預處理動態SQL
prepare stmt from @sqlcounts;
#傳遞動態SQL內參數
set @s1= categoryid;
execute stmt using @s1;
deallocate prepare stmt;
#獲取動態SQL語句返回值
set recordcount = @recordcount;

復制代碼 代碼如下:

#根據總記錄跳數計算出總頁數
set pagecount = ceiling((recordcount+0.0)/pagesize);
if pageindex <1 then
set pageindex = 1;
elseif pageindex > pagecount then
set pageindex = pagecount;
else
select pageindex,pagecount;
end if;