Check if the database exists in MySQL.

To determine if a MySQL database exists, you can use the following method:

1. Log in to the MySQL server using the command line interface. Open the terminal or command prompt, then enter the following command and press Enter:

mysql -u your_username -p

Replace `your_username` with your MySQL username. Then input your password to log in to MySQL.

Once you have successfully logged in, input the following command to list all databases:

SHOW DATABASES;

This will display all database names on the MySQL server.

To check if a specific database exists, you can use the following SQL query statement:

SHOW DATABASES LIKE 'your_database_name';

Replace `your_database_name` with the name of the database you want to check.

After executing the above query, if the query results contain the database name you specified, then it means that the database exists. Otherwise, it does not exist.

These steps will help you determine if a MySQL database exists. Please note, before carrying out these actions, ensure you have sufficient permissions to access the MySQL server and execute the necessary database queries.