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# TSQL Question

Posted on 2014-04-25
Medium Priority
282 Views
Hello

There is table that stores metric specific to the combination of account and product, period. The data is appended to the table  with time stamp (last column)
Now how do I do something in TSQL  - for each combination of account, product, period – get me the difference of metric1 of 5 jan to metric 1 of 1 jan. Please look excel

Thank you
eu-qestion.xlsx
0
Question by:Rayne
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LVL 49

Assisted Solution

PortletPaul earned 2000 total points
ID: 40023917
This result:
| ACCOUNT | PRODUCT | PERIOD | DIFF_METRIC1 | DIFF_METRIC2 | DIFF_METRIC3 | DIFF_METRIC4 |
|---------|---------|--------|--------------|--------------|--------------|--------------|
|     pl1 |      B1 |     p1 |           32 |          -32 |           -1 |           42 |
|     pl1 |      B1 |     p2 |           14 |          -34 |           32 |           26 |
|     pl1 |      B1 |     p3 |           37 |           20 |          -23 |           -7 |
|     pl1 |      B1 |     p4 |          -15 |          -38 |          -27 |           -4 |
|     pl1 |      B1 |     p5 |          -34 |           11 |           -6 |           39 |
|     pl1 |      B1 |     p6 |          -21 |           21 |           36 |           -6 |
|     pl1 |      B1 |     p7 |          -11 |           -6 |          -36 |          -16 |
|     pl1 |      B1 |     p8 |           -1 |           23 |           35 |           38 |
|     pl1 |      B1 |     p9 |           -2 |           29 |           11 |            0 |
|     pl1 |      B1 |    p10 |           19 |            3 |           37 |            6 |
|     pl1 |      B1 |    p11 |           33 |           15 |           39 |           30 |
|     pl1 |      B1 |    p12 |            7 |           13 |           22 |           -2 |
from this query:
SELECT
recent.account
, recent.product
, recent.period
, prev.metric1 - recent.metric1 AS diff_metric1
, prev.metric2 - recent.metric2 AS diff_metric2
, prev.metric3 - recent.metric3 AS diff_metric3
, prev.metric4 - recent.metric4 AS diff_metric4
FROM (SELECT *
FROM table1
) AS prev
JOIN (SELECT *
FROM table1
) AS recent
ON prev.account = recent.account
AND prev.product = recent.product
AND prev.period = recent.period
;

data:

CREATE TABLE Table1
([account] varchar(3), [product] varchar(2), [Period] varchar(3), [Metric1] int, [metric2] int, [metric3] int, [metric4] int, [DateOfUpload] datetime)
;

INSERT INTO Table1
([account], [product], [Period], [Metric1], [metric2], [metric3], [metric4], [DateOfUpload])
VALUES
('pl1', 'B1', 'p1', 56, 11, 34, 45, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p2', 45, 10, 35, 40, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p3', 45, 42, 20, 26, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p4', 25, 12, 19, 10, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p5', 1, 34, 9, 40, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p6', 6, 34, 39, 44, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p7', 18, 15, 9, 16, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p8', 9, 49, 44, 47, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p9', 8, 35, 19, 40, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p10', 36, 5, 44, 29, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p11', 37, 48, 46, 47, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p12', 32, 28, 49, 16, '2014-01-01 00:00:00'),
('pl1', 'B1', 'p1', 24, 43, 35, 3, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p2', 31, 44, 3, 14, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p3', 8, 22, 43, 33, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p4', 40, 50, 46, 14, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p5', 35, 23, 15, 1, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p6', 27, 13, 3, 50, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p7', 29, 21, 45, 32, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p8', 10, 26, 9, 9, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p9', 10, 6, 8, 40, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p10', 17, 2, 7, 23, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p11', 4, 33, 7, 17, '2014-01-05 00:00:00'),
('pl1', 'B1', 'p12', 25, 15, 27, 18, '2014-01-05 00:00:00')
;

http://sqlfiddle.com/#!3/129e4/4
0

LVL 49

Accepted Solution

PortletPaul earned 2000 total points
ID: 40023923
if you need parameters too, then it would like something like this:
DECLARE @prev AS datetime, @recent AS datetime
SET @prev = '20140101'
SET @recent = '20140105'

SELECT
recent.account
, recent.product
, recent.period
, prev.metric1 - recent.metric1 AS diff_metric1
, prev.metric2 - recent.metric2 AS diff_metric2
, prev.metric3 - recent.metric3 AS diff_metric3
, prev.metric4 - recent.metric4 AS diff_metric4
FROM (SELECT *
FROM table1
) AS prev
JOIN (SELECT *
FROM table1
) AS recent
ON prev.account = recent.account
AND prev.product = recent.product
AND prev.period = recent.period
;
0

Author Comment

ID: 40024058
Portlet Paul,

You are my life saver, thank you again. You have jumped in to help several times before as well.

Thank you Sire :)
0

Author Comment

ID: 40024076
this is awesome, thank you again. I was stuck in a mud slide :(
0

LVL 49

Expert Comment

ID: 40024384
:) thank you, it's my pleasure. Cheers, Paul
0

Author Comment

ID: 40830655
Thanks again Paul, this again helped after 1 year AGAIN :)
You rock
0

LVL 49

Expert Comment

ID: 40831362
:) too kind. All the best, Paul
0

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