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Practical Oracle SQL: Mastering the Full Power of Oracle Database
book

Practical Oracle SQL: Mastering the Full Power of Oracle Database

by Kim Berg Hansen
February 2020
Intermediate to advanced
467 pages
8h 30m
English
Apress
Content preview from Practical Oracle SQL: Mastering the Full Power of Oracle Database
© Kim Berg Hansen 2020
K. Berg HansenPractical Oracle SQLhttps://doi.org/10.1007/978-1-4842-5617-6_16

16. Rolling Sums to Forecast Reaching Minimums

Kim Berg Hansen1 
(1)
Middelfart, Denmark
 

If you have a steady consumption rate, it is easy to forecast how far you can go with that rate – for example, if you know your car on average drives 20 kilometers per liter fuel and it has 30 liters left in the tank, you can simply multiply to know that you can drive 600 kilometers before you run out of fuel.

But if the consumption is not steady, you need something else. If the Good Beer Trading Co sells a particular seasonal Christmas beer, it is not simply a steady 100 beers sold per month – June will sell very few of those beers, while December sells hundreds. ...

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ISBN: 9781484256176Purchase LinkPublisher Website