先週、過去先週からの最新のデータのみを取得し、

Question

は先週からの最新のデータのみを取得するいくつかの列を合計し、私は、DATと実際の結果と予想を例に作られたいくつかの列

を合計します。

http://rextester.com/HMB12638

--Taking an example kind of like this.. 

--  user contact   barcode date    in out dif 
-- 1 USER2 Guillermo Tole 987654 16.06.2017 05:27:00 500 420 80 
-- 2 USER2 Guillermo Tole 281460 15.06.2017 05:36:00 310 220 90 
-- 3 USER2 Guillermo Tole 987654 13.06.2017 05:27:00 400 380 20 
-- 4 USER2 Guillermo Tole 281460 12.06.2017 05:26:00 230 190 40 
-- 5 USER3 Juan Rulfo  123456 15.06.2017 05:37:00 450 300 150 
-- 6 USER3 Juan Rulfo  123456 12.06.2017 05:37:00 450 300 150 
-- 7 USER3 Pepito Marquez 346234 15.06.2017 05:37:00 600 360 240 
-- 8 USER3 Pepito Marquez 346234 14.06.2017 05:37:00 450 300 150 

これは、このクエリを使用して、私の実際の結果です。

最初。テーブルを作成し、情報

with tabla as (
    SELECT distinct on(barcode) barcode as barcode, id, date 
    from table1 as tabla 
    where date_trunc('day', date) <= '2017-06-25' ::date - (interval '1 week')::interval 
and date > '2017-06-25'::date - (interval '2 weeks')::interval 
    order by barcode, date desc 
) 

はその後、内側使用してクエリを作成したいIDを保つこれは私が以前のクエリを使用して取得した結果である

select user, contact, t1.barcode, t1.date, "in", out, dif , sum("in" - out) over (partition by contact order by t1.barcode) 
    from table1 t1 
     inner join tabla on tabla.id = t1.id 
    where date_trunc('day', t1.date) <= '2017-06-25' ::date - (interval '1 week')::interval 
and t1.date > '2017-06-25'::date - (interval '2 weeks')::interval 
order by contact, barcode, date desc 
-- PD, "in" is a reserved word, i have to keep it with commas 

以前に作成したテーブルに参加します。

--  user contact   barcode date    in out sum 
-- 1 USER2 Guillermo Tole 987654 16.06.2017 05:27:00 500 420 170 (80 + 90) 
-- 2 USER2 Guillermo Tole 281460 15.06.2017 05:36:00 310 220 170 (80 + 90) 
-- 5 USER3 Juan Rulfo  123456 15.06.2017 05:37:00 450 300 150 
-- 7 USER3 Pepito Marquez 346234 15.06.2017 05:37:00 600 360 240 

これは予想される結果であり、時には2週間前からのデータは存在しないだろうし、その場合には、それがnullであるか、今週空にすることができ、先週からのデータで、これもできますか（先週から）反逆が起こる。

--          | 2 weeks ago-----------------| | last week ------------------| 
    --  user contact   barcode date    in out sum date    in out sum  
    -- 1 USER2 Guillermo Tole 987654 8.06.2017 05:27:00 500 420 170 15.06.2017 05:27:00 600 550 100 
    -- 2 USER2 Guillermo Tole 281460 6.06.2017 05:36:00 310 220 170 16.06.2017 05:27:00 400 350 100 
    -- 5 USER3 Juan Rulfo  123456 9.06.2017 05:37:00 450 300 150 14.06.2017 05:27:00 650 350 300 
    -- 7 USER3 Pepito Marquez 346234 7.06.2017 05:37:00 600 360 240 15.06.2017 05:27:00 750 500 250 

Answer 1

これは、LAG（）およびROW_NUMBER（）のOVER（）句の中にバーコードを含むことで機能するようになりましたan earlier answerのバリアント（正確に私は信じている）があります。あなたのサンプルデータから

select "user", "contact", "barcode", "prev2date", "prev2in", "prev2out","prev2dif", "prev1date", "prev1in", "prev1out","prev1dif" 
    , sum("prev1in"-"prev1out") over(partition by "user", "contact") as "sum" 
from (
    select "user", "contact", "barcode", "date", "in", "out","dif" 
    , lag("date",2) over(partition by "user", "contact", "barcode" order by "date" ASC) prev2date 
    , lag("in" ,2) over(partition by "user", "contact", "barcode" order by "date" ASC) prev2in 
    , lag("out" ,2) over(partition by "user", "contact", "barcode" order by "date" ASC) prev2out 
    , lag("dif" ,2) over(partition by "user", "contact", "barcode" order by "date" ASC) prev2dif 
    , lag("date",1) over(partition by "user", "contact", "barcode" order by "date" ASC) prev1date 
    , lag("in" ,1) over(partition by "user", "contact", "barcode" order by "date" ASC) prev1in 
    , lag("out" ,1) over(partition by "user", "contact", "barcode" order by "date" ASC) prev1out 
    , lag("dif" ,1) over(partition by "user", "contact", "barcode" order by "date" ASC) prev1dif 
    , row_number() over(partition by "user", "contact", "barcode" order by "date" DESC) rn 
    from "table1" 
    ) d 
where rn = 1 and prev1dif is not null 
order by 1,2,4 DESC 

、私はこの結果を得た上でクエリを使用して：あなたの答えのための

+----+-------+----------------+---------+---------------------+---------+----------+----------+---------------------+---------+----------+----------+-----+ 
| | user | contact  | barcode |  prev2date  | prev2in | prev2out | prev2dif |  prev1date  | prev1in | prev1out | prev1dif | sum | 
+----+-------+----------------+---------+---------------------+---------+----------+----------+---------------------+---------+----------+----------+-----+ 
| 1 | USER2 | Guillermo Tole | 987654 | 23.06.2017 05:27:00 | 700  | 690  | 10  | 28.06.2017 05:27:00 |  800 |  760 |  40 | 120 | 
| 2 | USER2 | Guillermo Tole | 281460 | 15.06.2017 05:36:00 | 310  | 220  | 90  | 20.06.2017 09:37:00 |  490 |  410 |  80 | 120 | 
| 3 | USER3 | Juan Rulfo  | 123456 | NULL    | NULL | NULL  | NULL  | 12.06.2017 05:37:00 |  450 |  300 |  150 | 150 | 
| 4 | USER3 | Pepito Marquez | 346234 | 27.06.2017 05:37:00 | 900  | 690  | 210  | 30.06.2017 05:37:00 | 1050 |  900 |  150 | 150 | 
+----+-------+----------------+---------+---------------------+---------+----------+----------+---------------------+---------+----------+----------+-----+ 

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