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MySQL error: Troubleshooting query to other database
Reference article:
(1) MySQL error: Troubleshooting query to other database
（2） https://www.cnblogs.com/BTMaster/p/3517939.html
Let’s make a note.
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When logging in to MySQL, it will be reported to igning query to other database for further operation. The reason is that the – U parameter is not added when logging in
Add – u when logging in
mysql -uroot -p123456