Question

我正在使用SQL Server 2014，我有以下运行正常的T-SQL查询并提供以下输出：

SELECT a.StayID,           
       a.StayDate,      
       a.PlanCode,
       c.[Currency],
       a.Rate,
       d.[ROE],    
       c.[Property],
       c.[Tour]        

FROM ResStay a    

INNER JOIN 

(SELECT *

FROM [LIST]) c ON c.[StayID] = a.StayID and c.[MTH] = datename(m,StayDate) + ' ' + cast(datepart(yyyy,StayDate) as varchar)

INNER JOIN 

(SELECT *

FROM [PKGREVENUE]) d ON d.[StayID] = a.StayID AND d.[StayDate] = a.StayDate

WHERE c.[Status] <> 'CANCELED'

AND a.[StayDate] >= '2015-07-01'   

ORDER BY a.StayID, a.StayDate

当前输出如下：

StayID  StayDate    PlanCode    Cuurency    Rate    ROE  Property   Tour
 152    2015-07-01   G1HB        GBP        102     56     ASD      Smith
 152    2015-07-02  G1HB         GBP        102     56     ASD      Smith
 152    2015-07-03  G1HB         GBP        102     56     ASD      Smith
 178    2015-09-11  COAI         GBP         0      48     ASD      Jones
 178    2015-09-12  DEAI         GBP        115     48     ASD      Jones
 189    2015-10-02  COHB         GBP         0      56     ASD      Thomson
 189    2015-10-03  COHB         GBP         0      56     ASD      Thomson
 189    2015-10-04  COHB         GBP         0      56     ASD      Thomson

我需要在查询中添加一个过滤器，以便它排除所有StayID，其Sum的速率等于0。

因此我需要修改我的查询以便输出以下内容：

StayID  StayDate    PlanCode    Cuurency    Rate    ROE  Property   Tour
 152    2015-07-01   G1HB        GBP        102     56     ASD      Smith
 152    2015-07-02   G1HB        GBP        102     56     ASD      Smith
 152    2015-07-03   G1HB        GBP        102     56     ASD      Smith
 178    2015-09-11   COAI        GBP         0      48     ASD      Jones
 178    2015-09-12   DEAI        GBP        115     48     ASD      Jones

Answer 1

添加cum_rate列并对其进行过滤。

SELECT q.StayID, q.StayDate, q.PlanCode, q.Currency, q.Rate, q.ROE, q.Property, q.Tour FROM
(SELECT a.StayID,           
       a.StayDate,      
       a.PlanCode,
       c.[Currency],
       a.Rate,
       SUM(a.RATE) OVER(PARTITION BY StayID) as CUM_RATE,
       d.[ROE],    
       c.[Property],
       c.[Tour]        

FROM ResStay a    

INNER JOIN 

[LIST] c ON c.[StayID] = a.StayID and c.[MTH] = datename(m,StayDate) + ' ' + cast(datepart(yyyy,StayDate) as varchar)

INNER JOIN 

[PKGREVENUE] d ON d.[StayID] = a.StayID AND d.[StayDate] = a.StayDate

WHERE c.[Status] <> 'CANCELED'

AND a.[StayDate] >= '2015-07-01'   
)q
WHERE q.CUM_RATE >0
    ORDER BY q.ReservationStayID, q.StayDate

Answer 2

要总结您的费率，您需要使用汇总函数SUM，并使用StayDate的Max函数来获得一个包含费率总和的stayID。以下是如何做到这一点：

SELECT a.StayID AS ReservationStayID
    ,max(a.StayDate)
    ,a.PlanCode
    ,c.[Currency]
    ,SUM(a.Rate) AS Rate
    ,d.[ROE]
    ,c.[Property]
    ,c.[Tour]
FROM ResStay a
INNER JOIN [LIST] c ON c.[StayID] = a.StayID
    AND c.[MTH] = datename(m, StayDate) + ' ' + cast(datepart(yyyy, StayDate) AS VARCHAR)
INNER JOIN [PKGREVENUE] d ON d.[StayID] = a.StayID
    AND d.[StayDate] = a.StayDate
WHERE c.[Status] <> 'CANCELED'
    AND a.[StayDate] >= '2015-07-01'
GROUP BY a.stayID
    ,a.PlanCode
    ,c.Currency
    ,d.ROE
    ,c.Property
    ,c.Tour
HAVING SUM(a.Rate) > 0
ORDER BY a.StayID

注意：我删除了联接中的select语句，因为这不需要。您可以直接加入表格而无需选择。所以，我希望你也不要介意我改变它。

如何将此特定条件添加到我的SQL查询？

2 个答案: