How can we see which databases exist in MySQL?

Once you are connected to the MySQL server, you can follow these steps to see which databases are available:

Open the MySQL client or command line tool, and connect to the MySQL server.

Enter your username and password for identity verification.

   mysql -u your_username -p

Once connected, you will enter the interactive command line interface of MySQL.

Enter the following SQL statement in the command line to view all databases:

   SHOW DATABASES;

After executing the above statement, MySQL will return a result set containing the names of all databases on the current database server.

For example,

   +--------------------+
   | Database           |
   +--------------------+
   | information_schema |
   | mysql              |
   | performance_schema |
   | test               |
   +--------------------+

This is an example result set that displays four databases: ‘information_schema’, ‘mysql’, ‘performance_schema’, and ‘test’.

By doing this, you can get a list of all databases on the MySQL server. Keep in mind that in order to execute this command, you need to have sufficient permissions. Typically, only users with ‘SHOW DATABASES’ permission are able to execute this command.