INSERT INTO app_settings (setting_key, setting_value, created_at, updated_at)
VALUES
    ('gs1_api_login', '', NOW(), NOW()),
    ('gs1_api_password', '', NOW(), NOW()),
    ('gs1_prefix', '590532390', NOW(), NOW()),
    ('gs1_default_brand', 'marianek.pl', NOW(), NOW()),
    ('gs1_default_gpc_code', '10008365', NOW(), NOW())
ON DUPLICATE KEY UPDATE
    updated_at = VALUES(updated_at);