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Comment obtenir la somme cumulée d'une colonne sur un serveur SQL

Salut j'ai une colonne avec le nom Qté de la table Bills je veux une colonne qui montre la somme cumulée de la colonne Qté comme ceci:

Qty   Run_Sum
1      1
2      3
3      6
4      10
5      15

Suggérez-moi une méthode appropriée pour faire exécuter des remerciements

sqlsql-serversql-server-2008select
14
user1448783

démo SQLFiddle

SELECT Qty,
SUM(Qty) OVER (ORDER BY Qty) Run_Sum
FROM t ORDER BY Qty

Pour SQLServer avant 2012:

select Qty,
(select sum(Qty) from t where Qty<=t1.Qty)
from t t1 order by Qty

démo SQLFiddle

Ou vous pouvez également le faire sans sous-requête:

select t1.Qty, sum(t2.Qty)
from t t1 
join t t2 on (t1.Qty>=t2.Qty)
group by t1.Qty
order by t1.Qty

démo SQLFiddle

12
valex

si votre SGBDR prend en charge la fonction de fenêtre,

pour SQL Server 2012

SELECT  Qty,
        SUM(Qty) OVER (ORDER BY Qty) AS CumulativeTOTAL
FROM    tableName

pour SQL Server 2008

SELECT a.Qty, (SELECT SUM(b.Qty)
               FROM   TableName b
               WHERE  b.Qty <= a.Qty)
FROM   TableName a
ORDER  BY a.Qty;
12
John Woo

Voici un exemple utilisant les fonctions Oracle/analytiques:

select id, qty, sum(qty) over(order by id asc) run_sum
from test;

http://www.sqlfiddle.com/#!4/3d149/1

1
Lloyd Santos

@mahmud: voyez ce que cela donne

DECLARE @Bills table
(
    QUANTITY int
)

INSERT INTO @Bills
SELECT 2 UNION ALL
SELECT 6 UNION ALL
SELECT 7 UNION ALL
SELECT 1 UNION ALL
SELECT 3 UNION ALL
SELECT -5 UNION ALL
SELECT 5 UNION ALL
select 1

;with cte as (
  select top 1 QUANTITY, QUANTITY as RunningSum
  from @Bills
  order by QUANTITY

  union all

  select t.QUANTITY, cte.RunningSum + t.QUANTITY
  from cte
  inner join @Bills t on cte.QUANTITY + 1 = t.QUANTITY
)
select * from cte
0
Varun
;with cte as (
  select top 1 Qty, Qty as RunningSum
  from Bills
  order by Qty

  union all

  select t.Qty, cte.RunningSum + t.Qty
  from cte
  inner join Bills t on cte.Qty + 1 = t.Qty
)
select * from cte
0
muhmud

Vérifie ça

DECLARE @TEMP table
(
    ID int IDENTITY(1,1),
    QUANTITY int
)

INSERT INTO @TEMP
SELECT 1 UNION ALL
SELECT 2 UNION ALL
SELECT 3 UNION ALL
SELECT 4 UNION ALL
SELECT 8 UNION ALL
SELECT 7 UNION ALL
SELECT 5 UNION ALL
SELECT 1

SELECT t.QUANTITY AS Qty, SUM(t1.QUANTITY) AS Run_Sum
FROM @TEMP t
INNER JOIN @TEMP t1
ON t1.ID <= t.ID
GROUP BY t.ID, t.QUANTITY
ORDER BY t.ID
0
vikas