SAS is a software program used for advanced analytics, business intelligence, data management, and predictive analytics. SAS software can be used for both a graphical interface and the SAS programming language. Base SAS managed and manipulate the existing data for further analysis.
Loops allow you to execute SAS statements repeatedly thereby reducing the number of code lines.
The flow in loops can be classified as entry controlled or exit controlled. If the programming compiler checks for all conditions associated with the beginning of the loops executions are validated and true, then it is called as Entry controlled loops.