Rows are called observations . SAS programs consist of two types of steps - DATA steps and PROC steps. This type can also be used to produce custom reports. Alway end with a semicolon . One statement can continue over several lines.
Several statements can be on one line.
Sometimes, it can be used to create SAS data sets. There are three common ways to create a SAS data file. See SAS Language for details. A SAS data library is a collection of SAS files and is the highest level of organization for information within the SAS System. A SAS data library is a group of SAS files stored in the same directory, but only the files with SAS file extensions such as .sas , .log , and .lst , are recognized as part of the SAS data library.