sql which is not functionally dependent on columns in GROUP BY clause

引用和讨论了SQL中的一个错误消息：“Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column ‘information_schema.PROFILING.SEQ’ which is not functionally dependent on columns in GROUP BY clause”。这个错误消息意味着在使用GROUP BY语句时，ORDER BY子句中的表达式不在GROUP BY子句中，并且包含了一个在GROUP BY子句中不是函数依赖的非聚合列。

为了解决这个问题，你可以通过更改MySQL配置来修改sql_mode。引用中提供了两种修改sql_mode的方法。一种方法是使用vim编辑器打开my.cnf配置文件，找到sql_mode参数并将其设置为不包含ONLY_FULL_GROUP_BY选项。另一种方法是使用命令行输入sql_mode参数，并将其设置为不包含ONLY_FULL_GROUP_BY选项。在修改完配置文件或输入命令后，需要重新启动MySQL服务器才能使修改生效。

总结来说，解决这个错误的方法是修改MySQL的sql_mode配置，将其设置为不包含ONLY_FULL_GROUP_BY选项。这样就可以避免在使用GROUP BY语句时出现“not functionally dependent”错误。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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