Список рассылки

MySQL error.
SQL: SELECT eventid, eventtype, person.lastname as lastname, person.firstname as firstname, record2.value as patronymic, record1.value as description FROM seminar_notifications left join person on person.id=eventid left join record_extension record1 on record1.tablename='person' and record1.domain='info' and record1.name='desc' and record1.oid=person.id left join record_extension record2 on record2.tablename='person' and record2.domain='info' and record2.name='patronymic' and record2.oid=person.id WHERE eventtype='_teacher' and recipientid=.
Error: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 12

MySQL error.
SQL: SELECT eventtype, eventid, billing_company.title FROM seminar_notifications left join billing_company on eventtype='_teachingcenter' and eventid=billing_company.id WHERE eventtype='_teachingcenter' and recipientid=.
Error: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3

MySQL error.
SQL: SELECT eventid,eventtype,article.title as title, notifyoverweeks FROM seminar_notifications left join article on article.id=eventid and article.topic=82 WHERE eventtype='_seminar' and recipientid=.
Error: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3