mysql - SQL - Find Highest Single Day of Sales From Date Range -


i using mysql..

i have simple sales table follow:

o----o----------o-----------o | id | store_id |  logdate  | o----o----------o-----------o | 1  |    1     | 2015-1-13 | | 2  |    1     | 2015-1-14 | | 3  |    2     | 2015-1-11 | | 4  |    2     | 2015-1-18 | o----o----------o-----------o

and sale product table

o----o----------o---------o------------o | id | sale_id  |  qty    |    price   | o----o----------o---------o------------o | 1  |    1     |       1 |         10 | | 2  |    2     |       1 |         10 | | 3  |    2     |       1 |         10 | | 4  |    3     |       1 |         10 | | 5  |    3     |       1 |         10 | | 6  |    3     |       1 |         10 | | 7  |    4     |       1 |         10 | | 8  |    4     |       1 |         10 | o----o----------o---------o------------o

expected result

o-- --------o----------------o---------------------o | store_id  | sum(price*qty) |  highest date on    |  o-----------o----------------o---------------------o |     1     |             20 |           2015-1-14 | |     2     |             30 |           2015-1-11 | o-----------o----------------o---------------------o

how achieve expected result? have tried follow didn't work expected:

select store_id, max(total), highestsingledateon  (    select sum(price * qty) total,        date(s.logdate) highestsingledateon, s.store_id store_id    sale_product sp join sales s on s.id = sp.sales_id    group date(s.logdate), s.store_id    order date(s.logdate) asc ) result_for_highest_single_day group highestsingledateon, store_id 

select store_id, max(total), highestsingledateon  (    select sum(price * qty) total,        date(s.logdate) highestsingledateon, s.store_id store_id    sale_product sp join sales s on s.id = sp.sales_id    group date(s.logdate), s.store_id    order total desc ) result_for_highest_single_day group  store_id

i have modified script order date(s.logdate) asc >> order total desc , group highestsingledateon, store_id >> group store_id.

*above sql script,it uses unstable features group by of mysql.

*then according mysql standard,i write other version sql script.

select table1.*  ( select sum(price * qty) total,        date(s.logdate) highestsingledateon, s.store_id store_id    sale_product sp join sales s on s.id = sp.sale_id    group date(s.logdate), s.store_id) table1 , (select tmp.store_id,max(tmp.total) max_total          (select sum(price * qty) total,     date(s.logdate) highestsingledateon, s.store_id store_id    sale_product sp join sales s on s.id = sp.sale_id    group date(s.logdate), s.store_id ) tmp group tmp.store_id) table2  table1.store_id = table2.store_id , table1.total=table2.max_total

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