USE art_relations;; ALTER TABLE artist_yt_delivery_settings ADD channel_id VARCHAR(50) DEFAULT NULL COMMENT 'YouTube Channel ID', ADD yt_channel_type ENUM('name', 'id') DEFAULT 'name' NOT NULL COMMENT 'Defines the Channel Type used in the channel_name column.';; USE art_relations;; ALTER TABLE artist_yt_delivery_settings DROP COLUMN channel_id, DROP COLUMN yt_channel_type;;