topic Re: Apparent symbolic reference not resolved for first run in SAS Programming

Apparent symbolic reference not resolved for first run

chirumalla — Thu, 13 Feb 2014 06:52:53 GMT

Hi All,

I'm using below code to get last month data set when I try to run first time it's giving error/warning and if I ran same code again it's running successfully and giving vales how to trouble shoot this first run issue. pls advise me.

%LET JOBNAME=acardact_;

data _NULL_;

date1=intnx('MONTH',today(),-1,'SAMEDAY');

CALL SYMPUT("LOAD", TRIM(LEFT(PUT(DATE1, YYMMN6.))));

LOAD_T= "&JOBNAME"||"&LOAD";

CALL SYMPUT ("LOAD_DATE", LOAD_T);

%PUT &LOAD_DATE;

run;

Expecting value----- acardact_201401

LOG

124 %LET JOBNAME=acardact_;

125 data _NULL_;

126 date1=intnx('MONTH',today(),-1,'SAMEDAY');

127 CALL SYMPUT("LOAD", TRIM(LEFT(PUT(DATE1, YYMMN6.))));

128 LOAD_T= "&JOBNAME"||"&LOAD";

WARNING: Apparent symbolic reference LOAD not resolved.

129 CALL SYMPUT ("LOAD_DATE", LOAD_T);

130 %PUT &LOAD_DATE;

WARNING: Apparent symbolic reference LOAD_DATE not resolved.

Re: Apparent symbolic reference not resolved for first run

LinusH — Thu, 13 Feb 2014 07:24:53 GMT

Since macro variables are evaluated at compile time, date1 haven't been set at that time.

Just use data step variables, and then do call symput at the end.

Or just use macro code, not necessary to use a data step for this kind of logic.

Re: Apparent symbolic reference not resolved for first run

chirumalla — Thu, 13 Feb 2014 09:58:49 GMT

I tried this still I'm facing same issue pls help me how to resolve if possible give me code.

data _null_;

x = intnx('MONTH',today(),-1,'SAMEDAY');

%put &x;

run;

see below log

================================================

15 data _null_;

16 x = intnx('MONTH',today(),-1,'SAMEDAY');

17 %put &x;

WARNING: Apparent symbolic reference X not resolved.

18 run;

Re: Apparent symbolic reference not resolved for first run

LinusH — Thu, 13 Feb 2014 11:59:34 GMT

You can't put a macro variable that doesn't even exist... + (&x).

A is a data step variable in your example, not a macro variable.

Re: Apparent symbolic reference not resolved for first run

Astounding — Thu, 13 Feb 2014 13:30:31 GMT

Move the RUN; statement to before the %PUT statement. You have to force the DATA step to complete in order to create your macro variable.