摘要：https://dev.mysql.com/doc/refman/8.0/en/adding-users.html 阅读全文

摘要：mysql.user表root用户中的plugin字段，为unix_socket， 修改为mysql_native_password，即可 https://www.cnblogs.com/Dicky-Zhang/p/8000584.html 阅读全文

摘要：key只允许bytes value只允许 bytes、None 阅读全文

摘要：https://stackoverflow.com/questions/33714698/installing-bsddb3-6-1-1-in-windows-filenotfounderror-db-include-db-h pip安装不能，于是需要自己下whl文件进行安装 https://www 阅读全文

摘要：select datetime(timestamp, 'localtime') https://stackoverflow.com/questions/381371/sqlite-current-timestamp-is-in-gmt-not-the-timezone-of-the-machine 阅读全文