Today, I use phpstudy to open the MySQL database, and then connect to the database failed: the report is 1049, which means that the database does not exist.

The error is as follows
. In this CMD window, you can go all the way up to the time when you just connected the data

to see if your database name is right, but my database name is wrong
config file, which contains the

default.json file. There is a

database, fill in your own correct database name in the database, and then connect to the database after saving it

this way means success, and I hope it will help you with your mistakes!!!