Calculate a running total
Business intelligence is the lifeblood of the business role. There is a saying: "if you can't measure it, you can't sell it."
As a marketing analyst, you want to create a graph of cumulative views of articles over the period of time.
Bu egzersiz
Time Series Analysis in PostgreSQL
kursunun bir parçasıdırEgzersiz talimatları
- Calculate a running total of the article
views.
Uygulamalı interaktif egzersiz
Bu örnek kodu tamamlayarak bu egzersizi bitirin.
-- Calculate the running total for views
SELECT
id,
views,
ts,
___ AS running_total
FROM dc_news_fact;