id INT PRIMARY KEY,
comment VARCHAR(255),
translation VARCHAR(255)
);
INSERT INTO comments_and_translations (id, comment, translation) VALUES
(1, 'very good', NULL),
(2, 'good', NULL),
(3, 'bad', NULL),
(4, 'ordinary', NULL),
(5, 'cdcdcdcd', 'very bad'),
(6, 'excellent', NULL),
(7, 'ababab', 'not satisfied'),
(8, 'satisfied', NULL),
(9, 'aabbaabb', 'extraordinary'),
(10, 'ccddccbb', 'medium');
SELECT *
FROM comments_and_translations;
SELECT id, COALESCE(translation, comment) AS message
FROM comments_and_translations;