Solved

# Sum Generate last 30 days

Posted on 2012-03-27
836 Views
I need to do a daily sum, in the last 30 days. I have this query that fetches data from two tables, but if  exists a date in the second table (CabCC) and there is not in first table (CabFT), the value is not shown. How can I change the query to automatically generate the last 30 days in Select Datedoc.

SELECT Datedoc,
SUM(CASE WHEN Type='FT' AND Anl = 0 THEN isnull(value*cota,0)  END) AS 'Invoice',
(SELECT sum(Valuedoc)from CabCC where DateDocF=CabFT.Datedoc) as 'Rec'
FROM CabFT
group BY Datedoc
ORDER BY Datedoc desc
0
Question by:rflorencio
• 5
• 4
• 2
• +1

LVL 32

Expert Comment

The most common way is to create a table containing all of the dates within a large range, and join to that table when you need an "Everyday, even if there is no data" output.

Here is a block of code that will create a table and insert all days from Jan 1, 2000 to November 8, 2044.

``````CREATE TABLE allDatesList (Dt smalldatetime PRIMARY KEY CLUSTERED)
INSERT INTO alldateslist VALUES ('20000101')

DECLARE @offset int
SET @offset = 1
WHILE @offset < 16000
BEGIN
INSERT INTO allDatesList (Dt)
SELECT DATEADD(day, @offset, dt)
FROM allDatesList

SET @offset = @offset * 2
END

FROM allDatesList AS adl
``````

Now that you have this data, you can use it as the date driver for your query.  Here is an example that should work:

``````SELECT adt.dt AS Datedoc,
SUM(
CASE
WHEN Type='FT' AND Anl = 0
THEN isnull(value*cota,0)
END
) AS 'Invoice',
sum(Valuedoc) as 'Rec'
FROM allDatesList AS adt
LEFT JOIN CabFT
ON adt.Dt = CabFT.Datedoc
LEFT JOIN CabCC
ON adt.dt = CabCC.DateDocF
WHERE adt.Dt BETWEEN CAST(CAST(CURRENT_TIMESTAMP AS int) AS smalldatetime)
AND CAST(CAST(DATEADD(DAY, 30, CURRENT_TIMESTAMP) AS int) AS smalldatetime)
ORDER BY adt.dt DESC
``````
0

LVL 51

Expert Comment

maybe something like this

``````with n as (
select 1 n
union all select 2
union all select 3
union all select 4
union all select 5
union all select 6
union all select 7
union all select 8
union all select 9
union all select 0
)
SELECT *
FROM   (SELECT n1.n * 10 + n2.n n
FROM   n n1,
n n2
WHERE  n1.n * 10 + n2.n <= 30) x
LEFT JOIN (SELECT datedoc,
SUM(CASE
WHEN TYPE = 'FT'
AND anl = 0 THEN Isnull(VALUE * cota, 0)
END)                          AS 'Invoice',
(SELECT SUM(valuedoc)
FROM   cabcc
WHERE  datedocf = cabft.datedoc) AS 'Rec'
FROM   cabft
WHERE  Datediff(DAY, datedoc, Getdate()) <= 30
GROUP  BY datedoc) d
ON x.n = d.d
GROUP  BY n
ORDER  BY n DESC
``````
0

LVL 51

Expert Comment

if you create a view like

create view n as
select 1 n
union all select 2
union all select 3
union all select 4
union all select 5
union all select 6
union all select 7
union all select 8
union all select 9
union all select 0

create view nn as select n1.n*10+n2.n n from n n1, n n2

then your query will be

``````SELECT n, dateadd(day,-1,cast(GETDATE() as date)) docdate, x.rec
FROM   (SELECT n
FROM   nn
WHERE  n <= 30) x
LEFT JOIN (SELECT Datediff(DAY, datedoc, Getdate()) d,
datedoc,
SUM(CASE
WHEN TYPE = 'FT'
AND anl = 0 THEN Isnull(VALUE * cota, 0)
END)                          AS 'Invoice',
(SELECT SUM(valuedoc)
FROM   cabcc
WHERE  datedocf = cabft.datedoc) AS 'Rec'
FROM   cabft
WHERE  Datediff(DAY, datedoc, Getdate()) <= 30
GROUP  BY datedoc) d
ON x.n = d.d
ORDER  BY n DESC
``````
0

LVL 69

Expert Comment

>> How can I change the query to automatically generate the last 30 days in Select Datedoc. <<

Do you need to generate an output for *every* day, even if no input row matches that day, or summarize only existing days at the day level?

That is, say the table contained data for Feb 28 thru Mar 27, except for Mar 13, 15 and 17.

Should your result show *every* day, with 0s for Mar 13, 15 and 17?

Or should the result not show Mar 13, 15 and 17 at all since they have no data?
0

Author Comment

I do not really need to get a list of all the days of the month. In practice what i want is to get the data in Table CAbCC even if that date does not exist in table CabFT. But all in the same row
0

Author Comment

If a day does not have data I do not need to show.
0

LVL 69

Expert Comment

Thank you, excellent explanation!

SELECT
COALESCE(ft.Datedoc, cc.Datedoc) AS Datedoc,
SUM(CASE WHEN ft.Type='FT' AND ft.Anl = 0 THEN isnull(ft.value*ft.cota,0)  END) AS 'Invoice',
SUM(cc.Valuedoc) as 'Rec'
FROM CabFT ft
FULL OUTER JOIN CAbCC cc ON
cc.Datedoc = ft.Datedoc
group BY COALESCE(ft.Datedoc, cc.Datedoc)
ORDER BY COALESCE(ft.Datedoc, cc.Datedoc) desc
0

Author Comment

The values returned are not correct, for ex. (and only in Cabft) in my query without CabCC table, one row returns a  result of 693.05,  in your query returns  as a result of 2772.206400000
0

LVL 69

Accepted Solution

ScottPletcher earned 500 total points
Hmm, each date could likely appear multiple times in each table.

SELECT
COALESCE(ft.Datedoc, cc.Datedoc) AS Datedoc,
SUM(CASE WHEN ft.Type='FT' AND ft.Anl = 0 THEN isnull(ft.value*ft.cota,0)  END) AS [Invoice],
MAX(cc.Rec) AS [Rec]
FROM CabFT ft
FULL OUTER JOIN (
SELECT
Datedoc, SUM(Valuedoc) AS [Rec]
FROM CAbCC
GROUP BY
Datedoc
) AS cc ON
cc.Datedoc = ft.Datedoc
GROUP BY
COALESCE(ft.Datedoc, cc.Datedoc)
ORDER BY
COALESCE(ft.Datedoc, cc.Datedoc) DESC
0

Author Comment

The query works fine, how can i now filter from last 30 days
0

Author Closing Comment

Forget last post, it´s done. Thank´s
0

LVL 69

Expert Comment

SELECT
COALESCE(ft.Datedoc, cc.Datedoc) AS Datedoc,
SUM(CASE WHEN ft.Type='FT' AND ft.Anl = 0 THEN isnull(ft.value*ft.cota,0)  END) AS [Invoice],
MAX(cc.Rec) AS [Rec]
FROM CabFT ft
FULL OUTER JOIN (
SELECT
Datedoc, SUM(Valuedoc) AS [Rec]
FROM CAbCC
WHERE
Datedoc >= DATEADD(DAY, DATEDIFF(DAY, 0, DATEADD(DAY, -30, GETDATE())), 0)
GROUP BY
Datedoc
) AS cc ON
cc.Datedoc = ft.Datedoc
WHERE
ft.Datedoc >= DATEADD(DAY, DATEDIFF(DAY, 0, DATEADD(DAY, -30, GETDATE())), 0)
GROUP BY
COALESCE(ft.Datedoc, cc.Datedoc)
ORDER BY
COALESCE(ft.Datedoc, cc.Datedoc) DESC
0

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