mysql實現統計今日資料近七日資料及近八周資料

因為工作上的需求，需要統計本日資料、近七日資料及近八周資料，特此記錄一下，如果能幫到其他人倍感榮幸。

##本日資料

為了統計方便做了補零處理，即沒有資料就補零

select a. hour hour , ifnull(b.count, 0) count from (select 0hour union allselect 1hour union allselect 2hour union allselect 3hour union allselect 4hour union allselect 5hour union allselect 6hour union allselect 7hour union allselect 8hour union allselect 9hour union allselect 10hour union allselect 11hour union allselect 12hour union allselect 13hour union allselect 14hour union allselect 15hour union allselect 16hour union allselect 17hour union allselect 18hour union allselect 19hour union allselect 20hour union allselect 21hour union allselect 22hour union allselect 23hour ) a left join (select date_format( t.create_time, '%h')as hour ,count(* ) count from tbale t where datediff(t.create_time, now()) =0group byhour ) b on a. hour =b.hour order

byhour

##近七日資料

這個是近七日資料，不是本週資料，小夥伴注意區分，也做了補零處理

select a.click_date as
data
,ifnull(b.count,0)
as count
from
(select curdate(
)as click_date
union
allselect date_sub(curdate(),
interval
1day
)as click_date
union
allselect date_sub(curdate(),
interval
2day
)as click_date
union
allselect date_sub(curdate(),
interval
3day
)as click_date
union
allselect date_sub(curdate(),
interval
4day
)as click_date
union
allselect date_sub(curdate(),
interval
5day
)as click_date
union
allselect date_sub(curdate(),
interval
6day
)as click_date
) a left
join
(select
date
(t.create_time)
asdatetime
,count(*
)as count
from tbale t 
group
bydate
(t.create_time)
) b on a.click_date = b.
datetime
order
bydata

##近八周資料

這部分需要重點注意一下，mysql中的week函式預設是以週日為沒周的第一次計算的，不符合國情，所以我做了處理改為周一了，大家直接用就行了

select tbl._date as datestring,ifnull(tbr.allfare,0)
as count
from
(select
(@s:=@s+
1)as _index,week(
date
(date_sub(
current_date
,interval
@s week)),
1)as _date
from information_schema.character_sets,
(select
@s:=-1
)as init where
@s<
7order
by _date)
as tbl
left
join
(select
count(1
) allfare,week(t.create_time,1)
as finish_date
from tbale t 
where week(t.create_time,1)
>= week(
date
(date_sub(
current_date
,interval
7 week)),
1)and week(t.create_time,1)
<= week(
current_date,1
)group
by finish_date order
by finish_date
)as tbr on tbl._date = tbr.finish_date group
by tbl._date;

當然裡面是有坑的，有點mysql版本設定問題執行一些函式會報錯，別慌，

輸入下面這段sql就可以了

set @@global.sql_mode

='strict_trans_tables,no_zero_in_date,no_zero_date,error_for_division_by_zero,no_auto_create_user,no_engine_substitution'

希望可以幫到大家，謝謝

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mysql實現統計今日資料 近七日資料及近八周資料

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