Teradata SQL 在 GROUP BY 中具有非聚合字段

Question

我有下面的代码，Teradata 将无法工作，return 消息为 'Selected non-aggregate values must be part of the associated group.' 我想我已经确保所有非聚合字段都已放入 GROUP BY 子句中.你能帮我看看为什么它不起作用吗？

SELECT  str.store,str.city, str.state, dep.deptdesc, 100*(Clean.DecSales/Clean.DecSaleDays-Clean.NovSales/Clean.NovSaleDays)/(Clean.NovSales/Clean.NovSaleDays) AS PercentageChange

FROM ((skuinfo sku LEFT JOIN deptinfo dep ON sku.dept=dep.dept)

LEFT JOIN 
(SELECT t.sku, t.store, COUNT(DISTINCT t.saledate) AS NumOfDays, SUM(t.amt) AS DailyTotal,

(CAST(EXTRACT(YEAR FROM t.saledate) AS VARCHAR(8)))||'.'||
      (CAST(EXTRACT(MONTH FROM t.saledate) AS VARCHAR(8)))||'.'||
      (CAST(t.store AS VARCHAR(8)))AS ComboID,

SUM(CASE WHEN EXTRACT(MONTH from t.saledate) =11 THEN t.Amt END) AS NovSales,

SUM(CASE WHEN EXTRACT(MONTH from t.saledate) =12 THEN t.Amt END) AS DecSales,

COUNT(CASE WHEN EXTRACT(MONTH from t.saledate) =11 THEN t.saledate END) AS NovSaleDays,

COUNT(CASE WHEN EXTRACT(MONTH from t.saledate) =12 THEN t.saledate END) AS DecSaleDays

FROM trnsact t

WHERE (t.saledate NOT BETWEEN '2005-08-01' AND '2005-08-31') AND t.stype='P'

GROUP BY t.sku, t.store

HAVING NumOfDays>19) Clean 

ON sku.sku=Clean.sku)

LEFT JOIN strinfo str ON str.store=Clean.store

GROUP BY str.store,str.city, str.state, dep.deptdesc;

Answer 1

这是你的 SELECT:

SELECT str.store, str.city, str.state, dep.deptdesc,
       (100*(Clean.DecSales/Clean.DecSaleDays-Clean.NovSales/Clean.NovSaleDays)/(Clean.NovSales/Clean.NovSaleDays) ) AS PercentageChange

这是你的 GROUP BY:

GROUP BY str.store, str.city, str.state, dep.deptdesc

我在 SELECT 中看到很多在 GROUP BY 中没有的列引用。我猜你打算 SELECT 像这样：

SELECT str.store, str.city, str.state, dep.deptdesc,
       SUM(100*(Clean.DecSales/Clean.DecSaleDays-Clean.NovSales/Clean.NovSaleDays)/(Clean.NovSales/Clean.NovSaleDays)
          ) AS PercentageChange

或者在外部查询中根本没有 GROUP BY。

Answer 2

删除外部查询中的 GROUP BY。将派生的 table Clean 中的 GROUP BY 替换为序数 GROUP BY 1, 2, 5。

有些事情让我相信派生的 table 的列 ComboID，由 SaleDate 和 StoreID 组成，因为 SaleDate 不是 GROUP BY 但正在别处参与派生的聚合 table.

Teradata SQL 在 GROUP BY 中具有非聚合字段

Teradata SQL with non-aggregated fields in GROUP BY

mysql

sql

teradata