select a.id, a.name, a.category_id, a.status, a.logo,a.sort,a.introduce,a.state,a.company_id,a.message, a.privatize,a.version, a.create_by, a.create_time, a.update_by, a.update_time, a.remark,b.name as company_name,c.name as category_name from ex_course a left join sys_company b on b.id=a.company_id left join sys_category c on c.id=a.category_id update ex_course set del_flag=1 where id=#{courseId} and a.del_flag=0 AND a.name like concat('%', #{name}, '%') AND a.categoryId =#{categoryId} AND a.status =#{status} AND a.state =#{state} AND a.privatize =#{privatize} AND (a.company_id =#{companyId} or a.privatize=1) order by a.id desc where a.id=#{courseId} select id,name from ex_course where name=#{name} and del_flag=0 and company_id=#{companyId} limit 1 select state from ex_course where id=#{courseId} select count(1) from ex_course where category_id=#{categoryId} and del_flag=0 select sum(b.resource_length) from ex_course_chapter_period a inner join ex_resource b on a.resource_id=b.id where a.course_id=#{courseId}