select file_id, folder_id, file_name, file_type, file_size, file_path, download_count, status, del_flag, create_by, create_time, update_by, update_time from sys_file SELECT a.*,b.folder_name FROM sys_file a LEFT JOIN sys_file_folder b on a.folder_id=b.folder_id and a.folder_id = #{folderId} and a.file_name like concat('%', #{fileName}, '%') and a.file_type = #{fileType} and a.file_size = #{fileSize} and a.file_path = #{filePath} and a.download_count = #{downloadCount} and a.status = #{status} where file_id = #{fileId} insert into sys_file folder_id, file_name, file_type, file_size, file_path, download_count, status, del_flag, create_by, create_time, update_by, update_time, #{folderId}, #{fileName}, #{fileType}, #{fileSize}, #{filePath}, #{downloadCount}, #{status}, #{delFlag}, #{createBy}, #{createTime}, #{updateBy}, #{updateTime}, update sys_file folder_id = #{folderId}, file_name = #{fileName}, file_type = #{fileType}, file_size = #{fileSize}, file_path = #{filePath}, download_count = #{downloadCount}, status = #{status}, del_flag = #{delFlag}, create_by = #{createBy}, create_time = #{createTime}, update_by = #{updateBy}, update_time = #{updateTime}, where file_id = #{fileId} delete from sys_file where file_id = #{fileId} delete from sys_file where file_id in #{fileId} UPDATE sys_file SET status = #{status}, update_time = now(), update_by = #{updateBy} WHERE file_id = #{fileId} SELECT * FROM sys_file WHERE file_name = #{fileName} AND folder_id = #{folderId} WHERE file_id IN #{fileId}