oracle8.1.6
select cea.valid_p,
ad.domain,
cea.alert_id,
cea.expires,
cea.frequency,
cea.alert_type,
cea.category,
cea.keywords
from classified_email_alerts cea, ad_domains ad
where user_id = :user_id
and ad.domain_id = cea.domain_id
and sysdate <= expires
order by expires desc