Running Total on date column
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22-04-2021 - |
Frage
I have the following data in my table:
id invoice_id date ammount
1 1 2012-01-01 100.00
20 1 2012-01-31 50.00
470 1 2012-01-15 300.00
Now, I need to calculate running total for an invoice in some period. So, the output for this data sample should look like this:
id invoice_id date ammount running_total
1 1 2012-01-01 100.00 100.00
470 1 2012-01-15 300.00 400.00
20 1 2012-01-31 50.00 450.00
I tried with this samples http://www.sqlusa.com/bestpractices/runningtotal/ and several others, but the problem is that I could have entries like id 20, date 2012-01-31 and id 120, date 2012-01-01, and then I couldn't use NO = ROW_NUMBER(over by date)... in first select and then ID < NO in second select for calculating running total.
Lösung
DECLARE @DateStart DATE='2012-01-01';
WITH cte
AS (SELECT id = Row_number() OVER(ORDER BY [date]),
DATE,
myid = id,
invoice_id,
orderdate = CONVERT(DATE, DATE),
ammount
FROM [Table_2]
WHERE DATE >= @DateStart)
SELECT myid,
invoice_id,
DATE,
ammount,
runningtotal = (SELECT SUM(ammount)
FROM cte
WHERE id <= a.id)
FROM cte AS a
ORDER BY id
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