Magento: Admin page not found error

After moving magento to live server or demo server. If not able to access admin page or got page not found error. apply below sql query.

SET FOREIGN_KEY_CHECKS=0;

UPDATE `core_store` SET store_id = 0 WHERE code='admin';

UPDATE `core_store_group` SET group_id = 0 WHERE name='Default';

UPDATE `core_website` SET website_id = 0 WHERE code='admin';

UPDATE `customer_group` SET customer_group_id = 0 WHERE customer_group_code='NOT LOGGED IN';

SET FOREIGN_KEY_CHECKS=1;