我正在用IntelliJ编写一个Java应用程序,使用SQL数据库来处理约会。对于一个部分,我必须生成3种类型的报告:每月预约类型的数量,每个顾问的日程安排,以及今年的预约总数。我以前让它工作(并且没有改变任何东西),现在它在前两个报告生成时返回错误: Error Expression #2 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'U07sym.appointment.start' which is not functionally dependent on col
我有两台服务器,我想从一台服务器使用内部IP连接MySQL。我使用的是mysql 5.7.25 INSERT INTO mysql.user (User,Host,authentication_string,ssl_cipher,x509_issuerGRANT ALL PRIVILEGES ON *.* TO 'username'@'%';
GRANT ALL PRIVILEGES ON *.* TO 'username'@'loalhost