5. How do you connect to a MySQL database using the command line or a MySQL client?

To connect to a MySQL database using the command line or a MySQL client, follow these steps:

1. Open your command line interface. This could be Terminal for Mac and Linux, or Command Prompt for Windows.

2. Type the following command to connect to MySQL server: mysql -u username -p Replace 'username' with your MySQL username.

3. After hitting Enter, you'll be prompted to enter your password. Type your password and hit Enter again.

4. If your username and password are correct, you'll be logged into the MySQL server. You should see a 'mysql>' prompt.

5. To connect to a specific database, use the following command: use database_name; Replace 'database_name' with the name of the database you want to connect to.

6. If the database exists and you have the necessary privileges, you'll be connected to it. You can now run SQL queries on this database.

Remember, you need to have MySQL server installed and running on your machine to connect to a MySQL database.