delete from db_attentiontodo where eventdescription = #{eventdescription} and attr2!='-9' SELECT a.*, b.tenant_id as txrid FROM db_attentiontodo a INNER JOIN system_users b ON a.attr4 = b.nickname WHERE a.attr2 = #{param1} select * from db_attentiontodo where event = #{event} and remindtime is not null and deleted = 0 SELECT a.*, b.tenant_id as txrid FROM db_attentiontodo a INNER JOIN system_users b ON a.attr4 = b.nickname WHERE a.attr2 = #{param1} and a.attr5='1'