INSERT INTO `db_name`.`db_table_name` (`id`, `tag`, `count`) VALUES (NULL, 'AJAX', '0');
OR
INSERT INTO `db_name`.`db_table_name` (`id`, `tag`, `count`)
VALUES
(NULL, 'AJAX', '0'),
(NULL, 'PHP', '0'),
(NULL, 'jQuery', '0'),
(NULL, 'MySQL', '0')
;
SAME BUT CLEANER
INSERT INTO `db_name`.`db_table_name` (`id`, `tag`, `count`)
VALUES (NULL, 'AJAX', '0'), (NULL, 'PHP', '0'), (NULL, 'jQuery', '0'), (NULL, 'MySQL', '0');
If you are INSERTING multiple records with many columns, placing returns after each INSERT VALUE helps to visually keep things in order.