SQL:1999 and later permits such nonaggregates per optional feature T301 if they are functionally dependent on GROUP BY column GROUP BY 非标准用法后果 简而言之,MySQL 允许非标准用法,但结果是不确定的,即很可能不是你想要的结果。 实际场景有遇到的此类情况是,在一些环境基本都是你想要的结果,但在其他...
Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'database.table.column' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by 翻译过来就是在group by 的地方有一些列是没有包括进去的 具体...
SQL:1999 and later permits such nonaggregates per optional feature T301 if they are functionally dependent onGROUP BYcolumns: If such a relationship exists betweennameandcustid, the query is legal. This would be the case, for example, werecustida primary key ofcustomers. ...
This row has the year, country, and products columns set to NULL. The NULL indicators in each super-aggregate row are produced when the row is sent to the client. The server looks at the columns named in the GROUP BY clause following the leftmost one that has changed value. For any ...
ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregate ERROR 1055 (42000): Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'DBname.table.id' which is not functionally dependent on columns in GROUP BY cla...
使用GROUP BY 报错 In aggregated query without GROUP BY, expression #2 of SELECT list contains nonaggregated column 'st 解决方案 转载:https://cloud.tencent.com/developer/article/1404739 查询 select version(), @@sql_mode; 修改 SET sql_mode=(SELECT REPLACE(@@sql_mode,‘ONLY_FULL_GROUP_BY’,...
(section "Within-group aggregates") "5. Ordered subquery solution: A "trick" solution, made possible by MySQL's non-standard tolerance of GROUP BY when there is no aggregating SELECT expression, uses ORDER BY in a subquery to find the lowest prices, and GROUP BY in the outer query to ...
SQL:1999 and later permits such nonaggregates per optional feature T301 if they are functionally dependent on GROUP BY columns: If such a relationship exists between name and custid, the query is legal. This would be the case, for example, were custid a primary key of customers. ...
This enables standard SQL behavior: Columns not named in the GROUP BY clause cannot be used in the select list or HAVING clause unless enclosed in an aggregate function. ONLY_FULL_GROUP_BY also affects use of aliases in the HAVING clauses. For example, the following query returnsname values...
GROUP BY B.deptno; 但为什么mysql就能支持呢? SQL:1999 and later permits such nonaggregates per optional feature T301 if they are functionally dependent on GROUP BY columns: If such a relationship exists between name and custid, the query is legal. This would be the case, for example, were...