Question

我是sql server的新手。

如何显示记录开仓和关闭股票？

我不知道如何在SQL Server查询中显示记录表Formate？

请帮帮我

我的表

Ttype       ItemName         TDate          DC          Qty

 LGR        VANILA          08-04-2018      C           10
 GRN        VANILA          08-04-2018      C           10
 GRN        VANILA          09-04-2018      C           20
 DA         VANILA          10-04-2018      D           10
 DA         VANILA          10-04-2018      D           10       
 GRN        VANILA          11-04-2018      C           10
 DA         VANILA          12-04-2018      D           10

开始日期：11-04-2018结束日期：12-04-2018

预期输出

Ttype       ItemName         TDate          DC          Qty   

Op.St        VANILA         11-04-2018      C           20
GRN          VANILA         11-04-2018      C           10
DA           VANILA         12-04-2018      D           10
Cl.St        VANILA         12-04-2018      C           20

Answer 1

lead() lag()和union all ;with cte as ( select 1 as Sort, 'Op.St' Ttype, null ItemName, null TDate, null DC, null Qty union all select 2 as Sort, Ttype, ItemName, TDate, DC, Qty from table t where tdate >= '20180411' and tdate <= '20180412' union all select 3 as Sort, 'Cl.St' Ttype, null ItemName, null TDate, null DC, null Qty ) select Ttype, case (sort) when 1 then lead(ItemName) over (order by sort) when 3 then lag(ItemName) over (order by sort) else ItemName end ItemName , case (sort) when 1 then lead(TDate) over (order by sort) when 3 then lag(TDate) over (order by sort) else TDate end TDate, case (sort) when 1 then lead(DC) over (order by sort) when 3 then lag(DC) over (order by sort) else DC end DC, case when sort <> 2 then (select sum(Qty) from cte c) else Qty end Qty from cte c函数对我来说有点头疼

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Answer 2

作为变体，您可以使用UNION ALL

的3个查询

DECLARE
  @StartDate date='20180411',
  @EndDate date='20180412'

SELECT
  1 RowType,
  'Op.St' Ttype,
  ItemName,
  @StartDate TDate,
  IIF(SUM(IIF(DC='D',1,-1)*Qty)<0,'C','D') DC,
  ABS(SUM(IIF(DC='D',1,-1)*Qty)) Qty
FROM MyTable
WHERE TDate<@StartDate
GROUP BY ItemName

UNION ALL

SELECT
  2 RowType,
  Ttype,
  ItemName,
  TDate,
  DC,
  Qty
FROM MyTable
WHERE TDate BETWEEN @StartDate AND @EndDate

UNION ALL

SELECT
  3 RowType,
  'Cl.St' Ttype,
  ItemName,
  @EndDate TDate,
  IIF(SUM(IIF(DC='D',1,-1)*Qty)<0,'C','D') DC,
  ABS(SUM(IIF(DC='D',1,-1)*Qty)) Qty
FROM MyTable
WHERE TDate<=@EndDate
GROUP BY ItemName

ORDER BY RowType,TDate

我认为这种方式很清楚。

SQL小提琴 - http://www.sqlfiddle.com/#!18/ec687/1

另一个变种

DECLARE
  @StartDate date='20180411',
  @EndDate date='20180422'

SELECT
  1 RowType,
  'Op.St' Ttype,
  d.ItemName,
  m.TDate,
  IIF(d.Qty<0,'C','D') DC,
  ABS(d.Qty) Qty
FROM (SELECT @StartDate TDate) m
OUTER APPLY
  (
    SELECT ItemName,SUM(IIF(DC='D',1,-1)*Qty) Qty
    FROM MyTable
    WHERE TDate<m.TDate
    GROUP BY ItemName
  ) d

UNION ALL

SELECT
  2 RowType,
  Ttype,
  ItemName,
  TDate,
  DC,
  Qty
FROM MyTable
WHERE TDate BETWEEN @StartDate AND @EndDate

UNION ALL

SELECT
  3 RowType,
  'Cl.St' Ttype,
  d.ItemName,
  m.TDate,
  IIF(d.Qty<0,'C','D') DC,
  ABS(d.Qty) Qty
FROM (SELECT @EndDate TDate) m
OUTER APPLY
  (
    SELECT ItemName,SUM(IIF(DC='D',1,-1)*Qty) Qty
    FROM MyTable
    WHERE TDate<=m.TDate
    GROUP BY ItemName
  ) d

ORDER BY RowType,TDate

如果您想要获得行Op.St和Cl.St，可以使用第二种变体（例如，您可以设置@StartDate='20180401'和@EndDate='20180422'）

SQL小提琴 - http://www.sqlfiddle.com/#!18/ec687/4

如何使用Sql-Server获取记录开仓和关闭库存

2 个答案: