java.sql.SQLException：组函数的使用无效答案

【问题标题】：java.sql.SQLException: Invalid use of group functionjava.sql.SQLException：组函数的使用无效
【发布时间】：2021-12-28 03:18:41
【问题描述】：

从这个查询：

select count(*) as data, LOCATION_Name as location 
from SPECIAL_PROCEDURE_COLLECTION_FINAL_temp_final 
where sno>=6973 
  and sno<= 7251 
  and date(PAYMENT_DATE) = '2021-07-31' 
  and Procedures_Category IN ('FFA-VR') 
  and SUM(BILLED_AMOUNT)= 0 
group by LOCATION_Name

我收到此错误：

java.sql.SQLException：组函数的使用无效

有什么问题？

【问题讨论】：

标签： java mysql sql database

【解决方案1】：

对账单金额总和的限制属于HAVING子句，而不是WHERE子句：

SELECT COUNT(*) AS data, LOCATION_Name AS location 
FROM SPECIAL_PROCEDURE_COLLECTION_FINAL_temp_final 
WHERE sno BETWEEN 6973 AND 7251 AND
      PAYMENT_DATE >= '2021-07-31' AND PAYMENT_DATE < '2021-08-01' AND
      Procedures_Category = 'FFA-VR'
GROUP BY LOCATION_Name
HAVING SUM(BILLED_AMOUNT) = 0;

【讨论】：

【解决方案2】：

您不能在 where 子句中使用聚合函数。请将您的查询更改为：

select count(*) as data, LOCATION_Name as location 
from SPECIAL_PROCEDURE_COLLECTION_FINAL_temp_final 
where sno>=6973 and sno<= 7251 and 
date(PAYMENT_DATE) = '2021-07-31' and Procedures_Category IN ('FFA-VR') 
 group by LOCATION_Name
Having SUM(BILLED_AMOUNT)= 0

【讨论】：