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32 lines
706 B
SAS
32 lines
706 B
SAS
/**
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@file
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@brief Returns number of variables in a dataset
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@details Useful to identify those renagade datasets that have no columns!
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%put Number of Variables=%mf_getvarcount(sashelp.class);
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returns:
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> Number of Variables=4
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@param libds Two part dataset (or view) reference.
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@version 9.2
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@author Allan Bowe
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**/
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%macro mf_getvarcount(libds
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)/*/STORE SOURCE*/;
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%local dsid nvars rc ;
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%let dsid=%sysfunc(open(&libds));
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%let nvars=.;
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%if &dsid %then %do;
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%let nvars=%sysfunc(attrn(&dsid,NVARS));
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%let rc=%sysfunc(close(&dsid));
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%end;
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%else %do;
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%put unable to open &libds (rc=&dsid);
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%let rc=%sysfunc(close(&dsid));
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%end;
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&nvars
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%mend mf_getvarcount; |