INSERT INTO AssignToClass ( classesId, assignmentId , areaid ) Values ( #{classesId}, #{assignmentId} , #{areaid} ) UPDATE AssignToClass SET classesId = #{classesId}, assignmentId = #{assignmentId} , areaid = #{areaid} where classesId = #{classesId} and assignmentId = #{assignmentId} INSERT INTO AssignToClass ( classesId, assignmentId , areaid ) Values ( #{item.classesId}, #{item.assignmentId} , #{item.areaid} ) SELECT count(*) FROM AssignToClass a INNER JOIN Assignment b on a.classesId = #{classesId} AND a.assignmentId = b.assignmentId AND b.status = 1 and a.areaid = #{areaid} select classesid , assignmentid , areaid from assigntoclass where assignmentid in ( select assignmentid from assignment where (created between #{start} and #{end} ) or ( starttime<(current_date + interval '1 day') and startTime>=current_date and (extract(day from starttime)-extract(day from created))>0 ) and status = 1 ) SELECT a.classesId as "classesId",c.classname as "className" FROM AssignToClass a inner join classes c on a.classesid=c.classesid and c.status=1 and a.assignmentId=#{assignmentId} SELECT classesId, assignmentId,areaid FROM AssignToClass a where assignmentId=#{assignmentId}