![Determining the size of a SAS data set](https://blogs.sas.com/content/sastraining/files/2015/01/Kirk-Paul-Lafler.jpg)
When developing SAS® data sets, program code and/or applications, efficiency is not always given the attention it deserves, particularly in the early phases of development. Since data sizes and system performance can affect a program and/or an application’s behavior, SAS users may want to access information about a data set’s