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...
执行SQL> select ename,sum_sal from (select ename,sum(sal) sum_sal from ( select * from emp)) group by ename; select ename,sum_sal from (select ename,sum(sal) sum_sal from ( select * from emp)) group by ename * ERROR at line 1: ORA-00937: not a single-group group function 原...
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...
dba_data_files d where t.tablespace_name = d.tablespace_name group by t.tablespOracle SQL SQL...
2回答 使用case语句时出现Oracle SQL分组错误 、、、 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 ...
-- 错误的示例代码SELECTdepartment_id,COUNT(last_name)FROMemployees-- SELECT department_id, COUNT(last_name)-- *-- ERROR at line 1:-- ORA-00937: not a single-group group function 不能在 WHERE 子句中使用组函数。 可以在 HAVING 子句中使用组函数。
今天写SQL语句的时候 select sum(a.plate),sum(a.qty),sum(a.qly),a.materialtypeid,,b.spec, from fw_eqpres_materialinventory a,fw_eng_material b where a.materialtypeid=b.sysid and like '%XX%' group by a.materialtypeid 的时候提示 not a single group by function ...
Yes, there are a couple of alternatives The first is theWM_CONCATbuilt-in function. This is not supported by Oracle any more and is not documented, so I suggest avoiding it. Alternatively, you can create ageneric user-defined aggregate function, that does the work for you, in PL/SQL. ...
如果有有自定义角色,生成创建角色的sql,不含系统角色 --查询用户拥有的非系统角色 SELECT * FROM dba_role_privs where grantee in ('ENTSERVICE') and granted_role not in ('ADM_PARALLEL_EXECUTE_TASK' ,'APEX_ADMINISTRATOR_ROLE' ,'AQ_ADMINISTRATOR_ROLE' ,'AQ_USER_ROLE' ,'AUTHENTICATEDUSER' ,'CONN...
SQL>selectdeptno,max(sum(sal))fromempgroupbydeptno;selectdeptno,max(sum(sal))fromempgroupbydeptno*ERRORatline1: ORA-00937:nota single-groupgroupfunction 看一道 071 考题 Which queryisvalid? A.SELECTdept_id,join_date,sum(salary)FROMemployeesGROUPBYdept_id,join_date; ...