4.4. Interfacing PROC SQL with the Macro Language
Many software vendors’ SQL implementations permit SQL to be interfaced with a host language. The SAS System’s SQL implementation is no different. The SAS macro language lets you customize the way SAS software behaves and in particular extend the capabilities of the SQL procedure. PROC SQL users can apply the macro facility’s many powerful features by interfacing the SQL procedure with the macro language to provide a wealth of programming opportunities.
From creating and using user-defined macro variables and automatic (SAS-supplied) variables, reducing redundant code, performing common and repetitive tasks, to building powerful and simple macro applications, the macro language has the tools PROC ...
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