1.
V. Kumar Kunithala
2.
S. Manoj Kumar
3.
R. Bojja
4.
U Bharam
5.
P. Puvvula
6.
K. Ahamed
7.
M. Ranga
Abstract
The article is mainly describe the purpose of the macro facility and efficiency
of macro-based applications in clinical domain for create, tests, and provides resolution to
bugs, defects and other changes to the SAS macro library.It mainly focus on fundamental
concept of program flow, tokenization, %INCLUDE statement, %LET statement, macro
triggers, macro statements, macro variables, global and local symbol tables, automatic
macro variables, macro variable reference, substitution within a macro statement,
substitution within a SAS literal, unresolved reference, substitution within SAS code,
referencing macro variables, combining macro variables with text.It will give the brief
idea about macro functions, defining a macro, macro compilation, calling a macro ,macro
storage, macro parameters, SYMPUT routine, creating a series of macro variables, creating
macro variables in SQL, the need for macro-level programming, conditional processing,
monitoring macro execution , macro syntax errors, parameter validation, developing
macro-based applications, iterative processing, the SYMPUTX routine, rules for creating
and updating variables, rules for resolving variables, multiple local tables. This article
shows complete concept of the macro system.
