MySQL从被虐到成长

复杂语句整合：

1、创建临时表   2、批量更新临时表

create table temp_num as select t.website,count(t.website) as count from
                ( select website from app_coupon_api
				where website in (select website from app_coupon_brand
                    )  and status = 'public' and ( UNIX_TIMESTAMP(STR_TO_DATE(left(end_date,10), '%m/%d/%Y'))
						> (UNIX_TIMESTAMP(now())-0)
			    or  UNIX_TIMESTAMP(STR_TO_DATE(left(end_date,10), '%m/%d/%Y')) = 0
				or end_date is null ) ) t  GROUP BY t.website order by count(t.website) desc;

ALTER TABLE `temp_num` ADD INDEX `index_website` (`website`) USING BTREE ;

update app_rank a left join temp_num b on a.website = b.website set a.valid_coupon_num_day_0 = b.count

update app_rank set valid_coupon_num_day_0 = 0

drop table temp_num

select count(*) from
                    (
                    select * from app_coupon_api where website = '{$website}' and status = 'public' and UNIX_TIMESTAMP(STR_TO_DATE(left(end_date,10), '%m/%d/%Y')) > (UNIX_TIMESTAMP(now())-$allDecrese)
                    union
                    select * from app_coupon_api where website = '{$website}' and status = 'public' and UNIX_TIMESTAMP(STR_TO_DATE(left(end_date,10), '%m/%d/%Y')) = 0
                    union
                    select * from app_coupon_api where website = '{$website}' and status = 'public' and end_date is null
                    )t

create table temp_num as select t.website,count(t.website) as count from
                    ( select website from app_coupon_api
    				where website in (select website from app_coupon_brand
                        ) and status = 'public' and publictime < now()-86400)t GROUP BY t.website order by count(t.website) desc;

select * from app_coupon_api where website = 'na06.mypinpointe.com'

create table temp_num as  select t.website,count(t.website) as count from 
( select website from app_coupon_api 
				where website in (select website from app_coupon_brand
)  and status = 'public' 
							and ( UNIX_TIMESTAMP(STR_TO_DATE(left(end_date,10), '%m/%d/%Y')) 
										> (UNIX_TIMESTAMP(now())-0) 
			or  UNIX_TIMESTAMP(STR_TO_DATE(left(end_date,10), '%m/%d/%Y')) = 0 
				or end_date is null ) ) t  GROUP BY t.website order by count(t.website) desc;

update app_rank t set test = (select count from temp_num  t1 where t1.website=t.website )

select * from app_rank a,temp_num b where a.website = b.website

update  app_rank a left join temp_num b on a.website = b.website
set a.test = b.count


update app_rank set test='';
select * from app_rank a left join temp_num b on a.website = b.website






select count(*) from ( select * from app_coupon_api where website = 'chinabuye.com' and status = 'public' and UNIX_TIMESTAMP(STR_TO_DATE(left(end_date,10), '%m/%d/%Y')) > (UNIX_TIMESTAMP(now())-0) union select * from app_coupon_api where website = 'chinabuye.com' and status = 'public' and UNIX_TIMESTAMP(STR_TO_DATE(left(end_date,10), '%m/%d/%Y')) = 0 union select * from app_coupon_api where website = 'chinabuye.com' and status = 'public' and end_date is null )t



select count(*) FROM
(
select * from app_coupon_api 
				where website = 'chinabuye.com' and status = 'public' 
							and UNIX_TIMESTAMP(STR_TO_DATE(left(end_date,10), '%m/%d/%Y')) 
										< (UNIX_TIMESTAMP(now())-0) 
)t

SELECT pid from app_rank  where pid in(select pid from app_rank) and pid != 0 group by pid  HAVING count(pid)>99;

select website,id,pid,count(*) from app_rank where pid in (
SELECT pid from app_rank  where pid in(select pid from app_rank) and pid != 0 group by pid  HAVING count(pid)>99
) group by pid having count(*)>499

select DATE_FORMAT(created, '%Y-%m-%d') date, sum(1) total_count, sum(if(type_id=1,1,0)) rqt_count, sum(if(type_id = 3, 1, 0)) product_count from entity group by date ;