Как рассчитать YTD и MTD в mongodb?

Как рассчитать месячную дату (MTD) и год-на-дату (YTD) в mongodb в одном запросе? примеры данных ниже, в этих запрошенных запросахOn является полем даты, я хочу рассчитать MTD & с начала года, в предположении финансового года на «1 января года» (Например, финансовый год на 2016 год составляет «01-янв-2016» ":Как рассчитать YTD и MTD в mongodb?

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с уважением

Kris

источник

2016-11-14 chiku

Пожалуйста, покажите нам, что вы пробовали до сих пор. –

это хорошая практика, чтобы сохранить даты в MongoDB в своем родном DateFormat ISODate()

Вы можете использовать форматы даты like $ в год,. $ month, $ day, $ hour и т. д.

Они могут быть использованы для группирования, в вашем случае:

db.collectionName.aggregate([ 
      {$group:{_id:{'Date':{$year:'$requestedOn'}},total:{$sum:'$FieldName'}}} 
    ])

для преобразования строки в ISODate, ответы можно найти на

- [http://stackoverflow.com/questions/15473772/how-to-convert-from-string-to-date-data-type?noredirect=1&lq=1][2] 
    - [http://stackoverflow.com/questions/15473772/how-to-convert-from-string-to-date-data-type?noredirect=1&lq=1][2]

источник

2016-11-14 12:44:38 cartman619

Как рассчитать YTD и MTD в mongodb?

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