To delete a column in MySQL, you can use the ALTER TABLE statement along with the DROP keyword. Here's the syntax:

Syntax:

                
    ALTER TABLE table_name DROP COLUMN column_name;
                
            

Let's say we have a table called employees with the following structure:

Syntax:

                
    CREATE TABLE employees (
      id INT PRIMARY KEY,
      first_name VARCHAR(50),
      last_name VARCHAR(50),
      salary DECIMAL(10,2)
    );
                
            

And we want to delete the column salary from the table. Here's how you can do it:

Syntax:

                
    ALTER TABLE employees DROP COLUMN salary;
                
            

After executing the above statement, the column salary will be deleted from the employees table.

Remember to replace table_name with the actual name of your table and column_name with the name of the column you want to delete.

Keep in mind that deleting a column will permanently remove the data stored in that column, so ensure you have a backup of any important data before performing this operation. Additionally, deleting a column may affect other parts of your application that rely on that column, such as queries or code referencing it. So make sure to update your queries and code accordingly after deleting a column.