添加期初和期末余额列

Question

我有一张这样的表：

StockNumber|InventoryName|Year|Month|Adj|iss|piss|Tsfr|return|rdj|rpo|xefr
alb001      clinic1       2010  1     4   5    5   5    6      5   4   10
alb001      Clinic1       2010  2    10  2    2    3    3      4   4   4
alb001      Clinic1       2010  4    11  3   5    77    90     78   9   6
alb001      Clinic1       2010  5    10  2    2    3    3      4   4   4

我想添加一个结束余额列

sum(return+rdj+rpo+xefr) - sum(adj+iss+piss+tsfr)

我还想添加期初余额栏，这将是上个月的期末余额。

然后我会将当前月份余额计算为：

OpeningBalance + sum(return+rdj+rpo+xefr) - sum(adj+iss+piss+tsfr) = ClosingBalance

NB。年份和月份列是花车，也想将它们更改为日期格式。

我是SQL和水晶报道的新手。我想要一个查询来帮助我完成开发具有期初和期末余额列的报表的任务，期初余额是之前的期末余额。

Answer 1

你可以这样做：

;WITH WithClosingBalances
AS
(
    SELECT
      [StockNumber], 
      [InventoryName], 
      [Year], 
      [Month], 
      [Adj], 
      [iss],
      [piss], 
      [Tsfr], 
      [return], 
      [rdj], 
      [rpo], 
      [xefr],
      ([return] + rdj + rpo + xefr) -
      (adj+iss+piss+tsfr) ClosingBalance,
      ROW_NUMBER() OVER(PARTITION BY INVENTORYNAME
                        ORDER BY month) rownum
    FROM table1
), WithOpeningBalances
AS
(
    SELECT
      [StockNumber], 
      [InventoryName], 
      [Year], 
      [Month], 
      [Adj], 
      [iss],
      [piss], 
      [Tsfr], 
      [return], 
      [rdj], 
      [rpo], 
      [xefr],
      ClosingBalance,
      ISNULL((SELECT ClosingBalance 
             FROM WithClosingBalances c2
             WHERE c1.rownum - c2.rownum =1
            ), 0) OpeningBalance,
      rownum
    FROM WithClosingBalances c1
) 
SELECT
  [StockNumber], 
  [InventoryName], 
  [Year], 
  [Month], 
  [Adj], 
  [iss],
  [piss], 
  [Tsfr], 
  [return], 
  [rdj], 
  [rpo], 
  [xefr],
  ClosingBalance,
  OpeningBalance,
  OpeningBalance + ClosingBalance AS CurrentMonthBalance
FROM WithOpeningBalances;

SQL Fiddle Demo

这会给你：

| STOCKNUMBER | INVENTORYNAME | YEAR | MONTH | ADJ | ISS | PISS | TSFR | RETURN | RDJ | RPO | XEFR | CLOSINGBALANCE | OPENINGBALANCE | CURRENTMONTHBALANCE |
------------------------------------------------------------------------------------------------------------------------------------------------------------
|      alb001 |       clinic1 | 2010 |     1 |   4 |   5 |    5 |    5 |      6 |   5 |   4 |   10 |              6 |              0 |                   6 |
|      alb001 |       Clinic1 | 2010 |     2 |  10 |   2 |    2 |    3 |      3 |   4 |   4 |    4 |             -2 |              6 |                   4 |
|      alb001 |       Clinic1 | 2010 |     4 |  11 |   3 |    5 |   77 |     90 |  78 |   9 |    6 |             87 |             -2 |                  85 |
|      alb001 |       Clinic1 | 2010 |     5 |  10 |   2 |    2 |    3 |      3 |   4 |   4 |    4 |             -2 |             87 |                  85 |

---

此查询如何工作？

根据您的问题，此查询将评估CLOSINGBALANCE，OPENINGBALANCE, and CURRENTMONTHBALANCE`，如下所示：

• CLOSINGBALANCE =

    [return] + rdj + rpo + xefr) -
    (adj+iss+piss+tsfr)
  

  每个月。我假设你的表中的每个记录都是每个月。

• OPENINGBALANCE ：是按库存名称分组的上个月的CLOSINGBALANCE。这是使用ROW_NUMBER() OVER(PARTITION BY InventoryName)。

完成的 每条记录的

• CURRENTMONTHBALANCE = OpeningBalance + ClosingBalance。

---

更新：如果有多个月条目，您可以使用JOIN代替相关子查询，如下所示：

;WITH WithClosingBalances
AS
(
    SELECT
      [StockNumber], 
      [InventoryName], 
      [Year], 
      [Month], 
      [Adj], 
      [iss],
      [piss], 
      [Tsfr], 
      [return], 
      [rdj], 
      [rpo], 
      [xefr],
      ([return] + rdj + rpo + xefr) -
      (adj+iss+piss+tsfr) ClosingBalance,
      ROW_NUMBER() OVER(PARTITION BY INVENTORYNAME
                        ORDER BY month) rownum
    FROM table1
), WithOpeningBalances
AS
(
    SELECT
      [StockNumber], 
      [InventoryName], 
      [Year], 
      [Month], 
      [Adj], 
      [iss],
      [piss], 
      [Tsfr], 
      [return], 
      [rdj], 
      [rpo], 
      [xefr],
      c1.ClosingBalance,
      ISNULL(c2.ClosingBalance, 0) OpeningBalance
    FROM WithClosingBalances c1
    LEFT JOIN
    (
      SELECT rownum, SUM(ClosingBalance) ClosingBalance
      FROM WithClosingBalances
      GROUP BY rownum
    ) c2 ON c1.rownum - c2.rownum = 1
) 
SELECT
  [StockNumber], 
  [InventoryName], 
  [Year], 
  [Month], 
  [Adj], 
  [iss],
  [piss], 
  [Tsfr], 
  [return], 
  [rdj], 
  [rpo], 
  [xefr],
  ClosingBalance,
  OpeningBalance,
  OpeningBalance + ClosingBalance AS CurrentMonthBalance
FROM WithOpeningBalances;

这将为您提供相同的输出。

SQL Fiddle Demo