How to convert this particular MySQL schema into CouchDB
Asics womens shoes sale how to asics womens shoes sale convert this simple list MySQL schema asics tri noosa 10 womens into CouchDB
If each shoe is a piece of content, Who has a date_in and date_out, In that case your reduce function will +1 if the date_out is null, On top of that +0(No changes) If date_out not really null. asics womens shoes sale That will provides you with the total count of shoes in the warehouse.
To work out the average time, Per shoe, You know the time in the asics womens shoes sale facility. So the reduce function simply gathers the average. Since reduce performances asics tri noosa 10 womens must be commutative and associative, You use great average algorithm. The simplest way is to reduce to a[Total, Score] Plethora, Where sum is an accumulator for all time for all shoes, And count is a counter for how much shoes counted. Then you simply divides sum / count to compute the final average.
I think you could combine both of these into one big reduce if you would like, Perhaps creating a dakuohaozuo”Shoes in assembly line, 1, “Average time in factory, [253, 15]dakuohaoyou dakuohaozuotype ofshugangsort ofshugangform ofshugangstyle ofshugangtypes ofshugangsorts ofshugangtypeshugangparticularshugangsomewhatshugangvariety ofshugangquiteshugangkindshugangkindashugangsortshugangmore or lessshugangmethod ofshugangformshugangreasonablyshugangrathershugangversion ofshugangvarietyshugangmore than a littleshugangprettyshugangjust a littleshugangkinds ofshugangalmostshugangamount ofshugangmodel ofshugangway ofshugangfairlyshugangstyleshuganga bitshugangroughlyshugangverydakuohaoyou object.
Regardless, When you accept two different views for this data, Then there is simply a shortcut for the average. While during the map, Discharge(Zero, Season) Where time it’s time spent in the warehouse. In the eliminate a lot of, Set the full reduce value asics tri noosa 10 womens to _stats(See Builtin reduce services). The view output will be an item with the sum and count already computed asics womens shoes sale.