SAS Advanced Combo
The SQL procedure is SAS’ implementation of Structured Query Language. PROC SQL is part of Base SAS software, and you can use it with any SAS data set (table). Often, PROC SQL can be an alternative to other SAS procedures or the DATA step. You can use SAS language elements such as global statements, data set options, functions, informats, and formats with PROC SQL just as you can with other SAS procedures.
SAS has a powerful programming feature called Macros which allows us to avoid repetitive sections of code and to use them again and again when needed.