Understanding Symbol Tables
The Global Symbol Table
You are already somewhat
familiar with the global symbol table. Remember that automatic macro
variables are stored in the global symbol table. User-defined macro
variables that you create with a %LET statement in open code (code
that is outside of a macro definition) are also stored in the global
symbol table.
The global symbol table
is created during the initialization of a SAS session and is deleted
at the end of the session. Macro variables in the global symbol table
-
are available anytime during the session
-
can be created by a user
-
have values that can be changed during the ...
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