sql - SQLサーバーで列の実行中の合計を取得する方法

Question

こんにちは、テーブル Bills の Qty という名前の列があります。次のような Qty 列の現在の合計を表示する列が必要です。

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

いくつかの感謝を実行するための適切な方法を提案してください

Answer 1

SQLFiddle デモ

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

2012 より前の SQLServer の場合:

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

SQLFiddle デモ

または、サブクエリなしで実行することもできます:

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

SQLFiddle デモ

Answer 2

RDBMS がウィンドウ関数をサポートしている場合、

為にSQL Server 2012

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

• SQLFiddle デモ

為に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;

• SQLFiddle デモ

Answer 3

Oracle/分析関数を使用したサンプルを次に示します。

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

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

Answer 4

@mahmud：これが何を与えるか見てください

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

Answer 5

;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

Answer 6

これをチェックして

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