What potential issue is identified in the code snippet related to table structure?

The potential issue identified in the code snippet related to table structure is that there is no primary key defined for the table. It is essential to have a primary key in a database table to uniquely identify each row. This can help in ensuring data integrity and improving query performance. To solve this issue, you can alter the table structure to add a primary key column. You can use an auto-incrementing integer column as a primary key if there is no specific column that uniquely identifies each row.

// Alter the table to add a primary key column
ALTER TABLE your_table_name
ADD COLUMN id INT AUTO_INCREMENT PRIMARY KEY;