select * from sys_file where id = #{id} select * from sys_file where valid_flag=1 and name like concat('%',#{name},'%') order by version desc limit #{first}, #{pageSize} select count(1) from sys_file where valid_flag = 1 and name like concat('%',#{name},'%') insert into sys_file(id, valid_flag,name,fileName,url,createTime,updateTime,remark,version,newOrOld) values (#{id}, #{validFlag}, #{name}, #{fileName}, #{url},now(),now(),#{remark},#{version},#{newOrOld}) update sys_file set name=#{name},version=#{version},fileName=#{fileName}, url=#{url}, remark=#{remark},updateTime=now(),newOrOld=#{newOrOld} where id=#{id} update sys_file set valid_flag=0 where id in #{item}