Changing reset Magento base domain URLs

SELECT * FROM core_config_data WHERE path like '%base_url%';

SELECT * FROM core_config_data WHERE path = 'admin/url/custom';

UPDATE core_config_data SET value = 'http://domainname/' WHERE path = 'web/unsecure/base_url';

UPDATE core_config_data SET value = 'http://domainname/' WHERE path = 'web/secure/base_url';