Oracle中的"not a single-group group function"错误解析 1. 解释什么是“single-group group function” 在Oracle数据库中,所谓的"single-group group function"通常指的是SQL中的聚合函数(如SUM(), AVG(), COUNT(), MAX(), MIN()等),这些函数用于对一组行进行汇总计算,并返回一个单一的值。当使用这些聚...
ORA-00937: not a single-group group function 原因: 句话不会运行,因为deptno要求每行都显示,而sum要求统计后再显示,违反了原则。在有组函数的select中,不是组函数的列,一定要放在group by子句中。 1、在有组函数的select中,不是组函数的列,一定要放在group by子句中。 问题解决: select ename,sum_sal fr...
ORA-00937: not a single-group group function 报错提示:非单组函数 报错原因:SELECT 后 既有表结构本身的字段,又有需要使用聚合函数(COUNT(),SUM(),MAX(),MIN(),AVG()等)的字段,就必须要用到group by分组,这里报错是因为没有使用group by分组。 解决方法:增加group by分组即可。 注:如果查询的字段只有...
ORA-00937:notasingle-groupgroupfunction 不能在 WHERE 子句中使用组函数。 可以在 HAVING 子句中使用组函数。 SELECTdepartment_id,AVG(salary)FROMemployeesWHEREAVG(salary)>8000GROUPBYdepartment_id;---WHEREAVG(salary)>8000*ERRORatline3: ORA-00934:groupfunctionisnotallowed here 3.5、过滤分组: HAVING 子句...
select deptno ,lower(job),count() from emp group by deptno,job having count()>1 order ...
如果我使用下面的代码,我会得到ORA-00937 "not a single-group group function"错误:--Dimensions:--Measures (KPI's): SUM(COUNT_IO), --OEE: SUM(CASE我还尝试了在不使用GROUP BY的情况下执行 浏览4提问于2018-02-05得票数 0 2回答 使用CASE when语句时出现RODBC“无效字符\n”错误 、、、 我正在...
SELECT column, group_function(column) FROM table [WHERE condition] [GROUP BY group_by_expression] [ORDER BY column]; 可以使用GROUP BY子句将表中的行分成组。然后,可以使用组函数返回每个组的汇总信息。 在该语法中: group_by_expression 指定某些列,这些列的值确定对行进行分组的基准准则 ...
SELECT cust_nbr, sales_emp_id, COUNT(order_nbr)FROM cust_order;SELECT cust_nbr, sales_emp_id, COUNT(order_nbr) * ERROR at line 1: ORA-00937: not a single-group group function There is one case in which you can write aggregate expressions in a SELECT list without also writing a GRO...
SELECT CUST_NBR, SALES_EMP_ID, COUNT(ORDER_NBR) FROM CUST_ORDER; SELECT CUST_NBR, SALES_EMP_ID, COUNT(ORDER_NBR) * ERROR at line 1: ORA-00937: not a single-group group function Similarly, if we forget to include all nonaggregate expressions from the SELECT list in the GROUP BY clau...
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