Sas Support Symexist

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SAS Help Center: %SYMEXIST Macro Function - SAS Support

    http://support.sas.com/documentation/cdl/en/mcrolref/69726/HTML/default/n1mm3jwlbolg00n1b7w7aiybuch8.htm
    Dec 05, 2019 · Details . The %SYMEXIST function searches any enclosing local symbol tables and then the global symbol table for the indicated macro variable and returns one of the following values:

Solved: Macro Variable %Symexist - SAS Support Communities

    https://communities.sas.com/t5/SAS-Programming/Macro-Variable-Symexist/td-p/489819
    Your logic is over complicated as @Astounding has already answered.. But the reason the macro variable was not created is because of how PROC SQL works. When the result set has no observations then the macro variable is not created.

SYMEXIST Function - SAS Technical Support SAS Support

    http://support.sas.com/documentation/cdl/en/mcrolref/62978/HTML/default/n1j6dly37s4370n14hdiznpbxso4.htm
    The SYMEXIST function searches any enclosing local symbol tables and then the global symbol table for the indicated macro variable. The SYMEX/IST function returns one of the following values: ... executing the %TEST macro, which contains the SYMEXIST function, writes the following output to the SAS log: x EXISTS y EXISTS z does not EXIST ...

SAS Help Center: SYMEXIST Function

    https://go.documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=lefunctionsref&docsetTarget=p17npi7ti2jkidn1hw0fje3qqvph.htm&locale=en
    Nov 06, 2019 · Details . The SYMEXIST function searches any enclosing local symbol tables and then the global symbol table for the indicated macro variable and returns 1 if the macro variable is found or 0 if the macro variable is not found.. For more information, see theSYMEXIST Function Macro Function in SAS Macro Language: Reference.

%SYMEXIST Function - SAS Technical Support SAS Support

    http://support.sas.com/documentation/cdl/en/mcrolref/62978/HTML/default/n1mm3jwlbolg00n1b7w7aiybuch8.htm
    The %SYMEXIST function searches any enclosing local symbol tables and then the global symbol table for the indicated macro variable and returns one of the following values:

Macro Functions: %SYMEXIST Function - SAS Support

    http://support.sas.com/documentation/cdl/en/mcrolref/61885/HTML/default/a002635883.htm
    The %SYMEXIST function searches any enclosing local symbol tables and then the global symbol table for the indicated macro variable and returns a value of 1 if the macro variable is found or a value of 0 if the macro variable is not found.

timing of SYMEXIST function within data step? - Sas Institute

    https://communities.sas.com/t5/SAS-Programming/timing-of-SYMEXIST-function-within-data-step/td-p/187555
    As you have seen, a DATA step cannot use IF/THEN to determine whether to execute a %GLOBAL statement. The %GLOBAL statement is not part of the DATA step, and executes immediately (before SAS finishes interpreting the meaning of the DATA step statements).

conditional stop with %symexist - SAS Support Communities

    https://communities.sas.com/t5/SAS-Programming/conditional-stop-with-symexist/td-p/305265
    Thank you. It sounds like I should use your first suggestion and not use %symexist (or the one below that I just posted). I have a large project that requires alot of code that can be broken down into separate in-depth blocks of code that need to be processed in a linear fashion (one after the other) so I thought it would be more organized to put these in separate SAS files and use the include ...

Solved: Check to see if macro exists - SAS Support Communities

    https://communities.sas.com/t5/SAS-Programming/Check-to-see-if-macro-exists/td-p/121141
    I'm trying to check to see if a macro variable exists. I use a %WINDOW to allow users to enter values. The user does not have to enter a value for all options, since in my actual program there are >40 options. I'm trying to find a way to see which ones the user enters a value for. When testing this...

how to check if a macro variable exists.... - SAS Support ...

    https://communities.sas.com/t5/SAS-Programming/how-to-check-if-a-macro-variable-exists/td-p/206121
    That is not a test for existence. That is a test for whether it is empty. They are two different things. For example if I want to write a macro than can optionally update the macro variable RETURN I could add this line of code to the top of the macro to check if the macro variable exists and if it doesn't make a local version so that the value is not returned.



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