PROC SQL is a powerful Base SAS Procedure that combines the functionality of DATA and PROC steps into a single step.
PROC SQL can sort, summarize, subset, join (merge), and concatenate datasets, create new variables, print the results or create a new table or view all in one step!
Retrieving DBMS Data with a Pass-Through Query
Count In Proc Sql
How To Create New Columns In PROC SQL Without A Data Step?
The Power Of Proc SQL Subqueries In Data Analysis
A guide to Proc SQL Case When Statement
Proc SQL Automatic Macro Variables
proc sql debug queries
How To Use The SAS Proc SQL Order By Statement?
Truncated String Comparison Operators