Temporary datasets are datasets (files that store one or more records) that are only required for the length of the task and are erased once the project is over. These datasets are deleted after the job is finished. They need storage just for the period of the work, and as soon as the project is over, the files may be erased. These datasets are often expressed using the notation DSN=&&name, or else they are left unspecified in terms of a DSN. Using them, we are able to transmit the results of one phase to the subsequent steps of the same project.