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使用IDEA编辑连接JDBC数据时，出现了如下错误： The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the 'serverTimezone' configuration property) to use a more specific time z..

昨天用Navicat练习mysql语句时候，发现执行语句时报错，错误代码以及内容如下： [Err] 1055 - 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; th