DELETE FROM `table` WHERE `post_id` IN ('1','2');
INSERT INTO `table` (`post_id`,`category_id`) VALUES ('1','2'), ('1','3'), ('2','1');
DELETE FROM `table` WHERE `category_id` IN ('1','2','3');
INSERT INTO `table` (`post_id`,`category_id`) VALUES ('1','2'), ('1','3'), ('2','1');
TRUNCATE TABLE `table`;
INSERT INTO `table` (`post_id`,`category_id`) VALUES ('1','2'), ('1','3'), ('2','1');
userInputs.css("border-color", "red");