select c.id,c.contract_money, c.actual_contract_money,c.contract_sign_date,c.project_id,c.contract_introduction,c.actual_contract_introduction, c.del_flag,c.create_by,c.create_time,c.update_by,c.update_time,c.remark from ass_contract c where project_id=#{projectId} and del_flag=0 limit 1 where id=#{contractId} select count(1) from ass_contract where project_id=#{projectId} and del_flag=0