如题,
中间件XML文件的SQL如下:查20行左右的数据要4秒左右,怎么优化一下?谢谢select * from (
select pt_user_id,
pt_user_name,
contract_id,
min(anr) anr,
pay_style,
period_num,
(select qh_res_id from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) qh_res_id,
(select delivery_flag from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) cer_self_take,
b_typename,
total_qty,
make_date,
valid_date,
(select contract_intent_status from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) ht_status,
(select delivery_e_name from pnf_contract_delivery c where c.type_id = '1' and c.contract_id is not null and c.customer_id=a.customer_id and c.contract_id = a.contract_id and rownum<=1) qr_man,
a.contract_status co_status,
customer_id,
cust_name,
b_typeid,
(select sales_contract_id from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) sales_contract_id,
(select sh_name from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) sh_name,
(select end_trans_dw from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) end_trans_dw,
(select end_trans_dw_name from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) end_trans_dw_name,
(select end_username from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) end_username
from
(select distinct * from v_t_s_contract_d where contract_type = '10' and (pay_style = '10' or pay_style = '20') order by make_date desc) a
group by pt_user_id,pt_user_name,contract_id,pay_style,period_num,b_typename,total_qty,make_date,valid_date,contract_status,customer_id,cust_name,b_typeid)
where 1 = 1
中间件XML文件的SQL如下:查20行左右的数据要4秒左右,怎么优化一下?谢谢select * from (
select pt_user_id,
pt_user_name,
contract_id,
min(anr) anr,
pay_style,
period_num,
(select qh_res_id from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) qh_res_id,
(select delivery_flag from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) cer_self_take,
b_typename,
total_qty,
make_date,
valid_date,
(select contract_intent_status from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) ht_status,
(select delivery_e_name from pnf_contract_delivery c where c.type_id = '1' and c.contract_id is not null and c.customer_id=a.customer_id and c.contract_id = a.contract_id and rownum<=1) qr_man,
a.contract_status co_status,
customer_id,
cust_name,
b_typeid,
(select sales_contract_id from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) sales_contract_id,
(select sh_name from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) sh_name,
(select end_trans_dw from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) end_trans_dw,
(select end_trans_dw_name from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) end_trans_dw_name,
(select end_username from bs.etb_v_order_card_term b where b.sale_contract_id = a.contract_id and b.pt_user_id = a.pt_user_id and rownum<=1) end_username
from
(select distinct * from v_t_s_contract_d where contract_type = '10' and (pay_style = '10' or pay_style = '20') order by make_date desc) a
group by pt_user_id,pt_user_name,contract_id,pay_style,period_num,b_typename,total_qty,make_date,valid_date,contract_status,customer_id,cust_name,b_typeid)
where 1 = 1
要执行完这SQL一次,30分钟都跑不完,不知道要怎么调试呢~