查看未运行 - percentile_cont

编程问答 2022-06-02

问题描述

我有以下代码：

SELECT  disTINCT
        SQ.COMP_ID,SQ.JT,CAST(MIN(SQ.SUM_SALES) OVER (PARTITION BY SQ.JT)  AS DECIMAL (10,2)) AS MINIMUM,CAST(percentile_CONT(0.15) WITHIN GROUP (ORDER BY SQ.SUM_SALES) OVER (PARTITION BY SQ.JT) AS DECIMAL (10,2)) AS P15,CAST(percentile_CONT(0.25) WITHIN GROUP (ORDER BY SQ.SUM_SALES) OVER (PARTITION BY SQ.JT) AS DECIMAL (10,2)) AS P25,CAST(AVG(SQ.SUM_SALES) OVER (PARTITION BY SQ.JT) AS DECIMAL (10,2)) AS AVERAGE,CAST(percentile_CONT(0.5) WITHIN GROUP (ORDER BY SQ.SUM_SALES) OVER (PARTITION BY SQ.JT) AS DECIMAL (10,2)) AS MEDIAN,CAST(percentile_CONT(0.75) WITHIN GROUP (ORDER BY SQ.SUM_SALES) OVER (PARTITION BY SQ.JT) AS DECIMAL (10,2)) AS P75,CAST(percentile_CONT(0.85) WITHIN GROUP (ORDER BY SQ.SUM_SALES) OVER (PARTITION BY SQ.JT) AS DECIMAL (10,2)) AS P85,CAST(MAX(SQ.SUM_SALES) OVER (PARTITION BY SQ.JT) AS DECIMAL (10,2)) AS MAXIMUM,COUNT(SQ.SUM_SALES) OVER (PARTITION BY SQ.JT) AS AMOUNT,SQ.TARGET_DATE
FROM
(
SELECT  disTINCT
        E.COMP_ID,E.STAFF_ID,E.CONTRACT_ID,CT.JOB_TITLE AS JT,CAST(SUM(E.REVENUE) AS DECIMAL (10,2)) AS SUM_SALES,DT.CAL_DATE AS TARGET_DATE

FROM SALES E
LEFT JOIN DATES_TABLE DT ON 1=1
LEFT JOIN CONTRACT_TABLE CT ON CT.COMP_ID = E.COMP_ID and CT.STAFF_ID = E.STAFF_ID AND CT.CONTRACT_ID = E.CONTRACT_ID
LEFT JOIN J_CONDI C3 ON E.COMP_ID = C3.COMP_ID AND C3.COND_DATE = '20200101'

WHERE 
    E.SALES_DATE = DATEADD(MM,DATEDIFF(MM,DT.CAL_DATE),0) 
AND E.SALES_ID in ('566165','864651')

GROUP BY
        E.COMP_ID,CT.JOB_TITLE,DT.CAL_DATE
) SQ
WHERE
SQ.COMP_ID = '1561656' AND
SQ.TARGET_DATE = '20201215'

如果我将代码作为带有 where 子句的 select 语句运行，那么它运行并执行得非常好！

但是如果我创建一个查询：

CREATE VIEW SALES_STATS AS
(
SELECT  disTINCT
        SQ.COMP_ID,DT.CAL_DATE
) SQ
)

我调用视图如下

SELECT *
FROM SALES_STATS sst
WHERE
sst.COMP_ID = '1561656' AND
sst.TARGET_DATE = '20201215'

然后它运行，运行，运行，运行，运行，运行，运行，运行，运行，运行，运行，运行......它没有输出任何结果

我的同事告诉我这可能是因为WITHIN GROUP (ORDER BY SQ.SUM_SALES) OVER (PARTITION BY SQ.JT)，但他不知道如何解决

是否有另一种方法可以在不使用 percentile_CONT(x) 或不使用任何使用 OVER (PARTITION BY) 的函数的情况下获取 percentile

我只想获得诸如最小最大中位数和百分位数之类的统计数据

或者我可以让子查询先执行吗？我也试过使用 top(51619861) max number 但它不起作用。

解决方法

评论有点长。

SQL Server 可以替代 user defined functions 的视图。特别是，您可以拥有一个执行以下所有操作的 UDF：

  • 它需要参数。
  • 它返回一个表。
  • 它像视图一样被内联（也就是说，“代码”本质上是插入到查询中的，但比这稍微复杂一些）。

我认为它们是“参数化视图”。

我的建议是您创建一个用户定义的表值内联函数，该函数采用您将放在 WHERE 子句中的参数。

您的情况的基本语法是：

CREATE FUNCTION ufn_sales_stats (
    @compid int,@target_date date
)  RETURNS TABLE  
AS  
RETURN (  <your parameterized query here> );
percentilesqlsqlsql-serversql-server-2012