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Messages 1 to 4 of 4 total |
Calculate Cumulative Sum or Running Total |
Sat, Jun 22 2019 12:16 PM | Permanent Link |
Anthony | I was wanting to create a running total of item count for any given month, I can get the count totals as shown below but not a cumulative total as shown in the second table below
SELECT day, count(items) from table1 GROUP BY day day | count ---------------------------- 2019-06-01 | 10 2019-06-02 | 10 2019-06-03 | 10 day | count ---------------------------- 2019-06-01 | 10 2019-06-02 | 20 2019-06-03 | 30 Any ideas would be greatly appreciated |
Sun, Jun 23 2019 2:54 AM | Permanent Link |
Roy Lambert NLH Associates Team Elevate | Anthony
Try SELECT day, count(items), runsum(1) from table1 GROUP BY day Roy Lambert |
Sun, Jun 23 2019 3:05 AM | Permanent Link |
Roy Lambert NLH Associates Team Elevate | Just to point out an interesting fact
I didn't think a simple RUNSUM(1) would work so I tried a few ideas using one of my tables select count(*), runsum(1), (SELECT COUNT(*) FROM Analysis X WHERE X._fkCoding = Analysis._fkCoding), RUNSUM((SELECT COUNT(*) FROM Analysis X WHERE X._fkCoding = Analysis._fkCoding)) from Analysis group by _fkcoding The interesting thing is that runsum does its counting BEFORE the group by takes effect Roy Lambert |
Sun, Jun 23 2019 7:31 PM | Permanent Link |
Richard Harding Wise Nutrition Coaching | Anthony
Another way of obtaining cumulative counts - and it is a sensitive query. CREATE TABLE "SalesSummary" ( "ID" INTEGER GENERATED BY DEFAULT AS IDENTITY (START WITH 0, INCREMENT BY 1) NOT NULL, "SaleDate" DATE NOT NULL, "SaleCount" INTEGER DEFAULT 0 NOT NULL ) CREATE VIEW "Sales1" AS SELECT ID, SaleDate, SaleCount, (SELECT SUM( SaleCount) FROM SalesSummary AS S1 WHERE S0.SaleDate >= S1.SaleDate) AS NumberOfSales FROM SalesSummary AS S0 ===================================================== SalesSummary -------------------- "ID","SaleDate","SaleCount" 1,2019-06-01,10 2,2019-06-02,10 3,2019-06-03,10 Sales1 --------- "ID","SaleDate","SaleCount","NumberOfSales" 1,2019-06-01,10,10 2,2019-06-02,10,20 3,2019-06-03,10,30 Richard |
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