SAS Users
Providing technical tips and support information, written for and by SAS users.
SAS administrator tip: How to identify and prevent duplicate librefs in SAS metadata
In this SAS administration tutorial Leonid Batkhan presents various SAS programming solutions on how to identify and prevent duplicate LIBREFs in SAS 9 metadata.
Building an open source software community
Joseph Castle offers some important considerations that will help you when building and working in an OSS community.
Unexpected results from missing values with PROC SQL
SAS SQL handles missing values differently than the ANSI standard for SQL. PROC SQL follows the SAS convention for handling missing values: numerical missing values are always interpreted as less or smaller than all nonmissing values. My first blog showed that missing values can be troublemakers in non-grouped descriptive statistics.