Feat(SQL, UI): Redesign database with much more detailed command response quality analysis and created successfully loading Dog Command Links page

static/MySQL/30500_tri_DOG_User_Change_Set.sql

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+USE parts;
+
+DROP TRIGGER IF EXISTS parts.before_insert_DOG_User_Change_Set;
+
+DELIMITER //
+CREATE TRIGGER parts.before_insert_DOG_User_Change_Set
+BEFORE INSERT ON parts.DOG_User_Change_Set
+FOR EACH ROW
+BEGIN
+	IF NEW.updated_last_on <=> NULL THEN
+		SET NEW.updated_last_on = NOW();
+	END IF;
+END //
+DELIMITER ;
+
+
+DELIMITER //
+CREATE TRIGGER parts.before_update_DOG_User_Change_Set
+BEFORE UPDATE ON parts.DOG_User_Change_Set
+FOR EACH ROW
+BEGIN
+	IF NOT EXISTS(SELECT * FROM parts.DOG_User WHERE id_user = NEW.id_user_updated_last_by) THEN
+		SIGNAL SQLSTATE '45000'
+        SET MESSAGE_TEXT = 'New Updated-Last-By User ID must be provided.';
+	END IF;
+END //
+DELIMITER ;