oracle排序分頁查詢和mysql資料庫的語句還不一樣，這裡做簡單的記錄。
select a.*, rownum rn from (select * from v_log) a order by operatetime desc可以發現，按時間排序了，但是rownum並不是從小到大，因為oracle是先生成rownum，再進行排序，需要在套一層查詢
select t.*, rownum rn from(
select * from (select * from v_log) order by operatetime desc
) t
順序正確，rownum正確，在此基礎上再套一層查詢進行分頁
## 子查詢先找出所有，然後再rownum,rownum 為偽列，後再排序
select a."sku", a."goods_sn", rownum rn from (select * from amz_huopin_sku) a order by a."sku" desc
## 因為oracle是先生成rownum，再進行排序，需要在套一層查詢,即先拍好序，然後再生成rownum
select t."sku", t."goods_sn", rownum rn from (select * from (select * from amz_huopin_sku) order by "sku" desc
) t## 上邊的這兩個語句是等價的
select t."sku", t."goods_sn", rownum rn from (select * from amz_huopin_sku order by "sku" desc
) tselect t2.* from(
select t."sku", t."goods_sn", rownum rn from (select * from amz_huopin_sku order by "sku" desc
) t) t2 where rn between 0 and 10
# 1、子句查詢，這條語句可以加條件where
select * from (select a."sku", a."goods_sn", a."category",a."color_name", a."size_name", a."fnsku",h.qty,h.warehouseid,h.f_create_time from amz_huopin_sku a
left join hwc_camel_inv_all h on a."fnsku" = h.sku)
# 2、排序
select * from (select * from (select a."sku", a."goods_sn", a."category",a."color_name", a."size_name", a."fnsku",h.qty,h.warehouseid,h.f_create_time from amz_huopin_sku a
left join hwc_camel_inv_all h on a."fnsku" = h.sku)) order by "goods_sn" desc
# 3、排序之後，再獲取rownum
select t.*, rownum rn from (select * from (select * from (select a."sku", a."goods_sn", a."category",a."color_name", a."size_name", a."fnsku",h.qty,h.warehouseid,h.f_create_time from amz_huopin_sku a
left join hwc_camel_inv_all h on a."fnsku" = h.sku)) order by "goods_sn" desc) t
# 4、再根據獲取到的rownum按照順序進行分頁
select r.* from(
select t.*, rownum rn from (select * from (select * from (select a."sku", a."goods_sn", a."category",a."color_name", a."size_name", a."fnsku",h.qty,h.warehouseid,h.f_create_time from amz_huopin_sku a
left join hwc_camel_inv_all h on a."fnsku" = h.sku where a."goods_sn" = 'k832026565')) order by "goods_sn" desc) t
) r where rn between 10 and 20
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