select file_id, qu_id, url, file_type from sys_file and qu_id = #{quId} and file_id = #{fileId} where file_id = #{fileId} and qu_id = #{quId} insert into sys_file file_id, qu_id, url, file_type, #{fileId}, #{quId}, #{url}, #{fileType}, insert into sys_file (file_id, qu_id,url,file_type) values (#{item.fileId},#{item.quId},#{item.url},#{item.fileType}) update sys_file qu_id = #{quId}, url = #{url}, file_type = #{fileType}, where file_id = #{fileId} delete from sys_file where file_id = #{fileId} delete from sys_file where file_id in #{fileId} delete from sys_file where qu_id = #{firstQuId} delete from sys_file where qu_id in #{firstQuId}