“not a single-group group function” 错误详解 1. 错误含义 “not a single-group group function” 是 Oracle 数据库中的一个常见错误,通常出现在 SQL 查询中。这个错误表明在 SELECT 语句中同时使用了聚合函数(如 SUM, AVG, COUNT 等)和非聚合列,但是没有正确使用 GROUP BY 子句来对这些非聚合列进行分...
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-00923:not a single-group group function Oracle documentation states the cause as the following: A SELECT list cannot include both a group function, such as AVG, COUNT, MAX, MIN, SUM, STDDEV, or VARIANCE, and an individual column expression, unless the individual column expression is inclu...
ORA-00937: not a single-group group function Because we have a group function (COUNT) in our column list, and an additional column (OWNER), we have to include the GROUP BY clause in our select statement. SQL> select owner, count(*) 2 from dba_segments 3 group by owner; OWNER COUNT(...
Get the Oracle Cheat Sheet Get The Cheat Sheet Table of Contents ORA-00937: not a single-group group function ORA-00937 Solution Solution 1: Add the expressions into the GROUP BY clause Solution 2: Remove the expression from the SELECT clause ...
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...
group function“EN我在这个sql查询中遇到了ORA-00937："not a single-group group function“错误问题:...
group by TABLESPACE_NAME; I have: ORA-00934: group function is not allowed here 00934. 00000 - "group function is not allowed here" *Cause: *Action: Error at Line: 3 Column: 14 Thanks for your help.
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