select
a.click_date,
ifnull(b.count,0)count
from
(select
curdate( ) as click_date union all
select
date_sub( curdate( ), interval 1 day ) as click_date union all
select
date_sub( curdate( ), interval 2 day ) as click_date union all
select
date_sub( curdate( ), interval 3 day ) as click_date union all
select
date_sub( curdate( ), interval 4 day ) as click_date union all
select
date_sub( curdate( ), interval 5 day ) as click_date union all
select
date_sub( curdate( ), interval 6 day ) as click_date
) aleft join ( select date( create_date ) as create_date, count( * ) as count from vip_experience group by date( create_date ) ) b on a.click_date = b.create_date;
下面這個是我查詢的sql
select
a.*,
ifnull( b.inlet_flow, 0 ) inlet_flow,
ifnull( b.passen_flow, 0 ) passen_flow,
ifnull( b.entry_rate, 0 ) entry_rate
from
(select
curdate( ) as date union all
select
date_sub( curdate( ), interval 1 day ) as date union all
select
date_sub( curdate( ), interval 2 day ) as date union all
select
date_sub( curdate( ), interval 3 day ) as date union all
select
date_sub( curdate( ), interval 4 day ) as date union all
select
date_sub( curdate( ), interval 5 day ) as date union all
select
date_sub( curdate( ), interval 6 day ) as date
) aleft join (
select
temp.date,
temp.inlet_flow,
temp.passen_flow,
temp.entry_rate
from
(select
date_format( mt.trace_date, '%y-%m-%d' ) as date,
count( ve.create_date ) as inlet_flow,
count( mt.trace_date ) as passen_flow,
concat( round( count( ve.create_date ) / count( mt.trace_date ) * 100, 2 ), '', '%' ) as entry_rate
from
member_footprint mt
left join vip_experience ve on mt.face_id = ve.face_id
#and date_format( mt.trace_date, '%y-%m-%d' ) = date_format( ve.create_date, '%y-%m-%d' )
left join device d on mt.cid = d.dev_cid
where
#date_sub( curdate( ), interval 7 day ) < date( now( ) )
#and
d.shop_id = 1
group by
date_format( mt.trace_date, '%y-%m-%d' )
) temp
) b on a.date = b.date
order by
a.date asc
上面的select是做個7天的日期查詢，後面的sql是業務的資料，然後根據date就是格式化後的日期分組，然後用date就是具體的日期join一下，留下符合 日期條件的資料，可以join也可以用in做子查詢，看下下面的效果
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