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Date:         Mon, 6 Dec 2010 15:12:29 -0500
Reply-To:     Chang Chung <chang_y_chung@HOTMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Chang Chung <chang_y_chung@HOTMAIL.COM>
Subject:      Re: %sysfunc
Comments: To: JP Zhu <zhujp98@GMAIL.COM>

On Mon, 6 Dec 2010 14:42:46 -0500, Jeff <zhujp98@GMAIL.COM> wrote:

>code: > firstdateofsrv>=%sysfunc(intnx(month,%sysfunc(inputN(%sysfunc(dequote (&start)),mmddyy10)),1),mmddyy10) > > >log: > >MPRINT(GETCLAIMSDATA): create table data.BSC_Med_Claim as select *from >connection to OLEDB ( >select * from dw1.BSC_DBOR.dbo.BSC_MED_CLAIM where >firstdateofsrv>=02/01/2009 > >*I want *%sysfunc(intnx(month,%sysfunc(inputN(%sysfunc(dequote (&start)),mmddyy10)),1),mmddyy10) >to be resolved to '02/01/2009' not 02/01/2009 >how can I do that? ... hi, jeff, When handling dates and date literals in macro, I found that it is helpful to have a couple of very simple utility macros. Hope this helps a bit. Cheers, Chang

%*-- utilities --*; %macro date2num(date, informat=anydtdte.); %*-- strip quotations and postfix d from date literal if any. --*; %*-- quotations are intentionally doubled to prevent unmatched error --*; %let date=%sysfunc(prxchange(s/[''""]d?//i,-1,&date)); %sysfunc(inputn(&date,&informat)) %mend date2num;

%macro num2date(num, format=date10., literal=1); %local n; %let n = %sysfunc(putn(&num,&format)); %if &literal %then "&n"d; %else &n; %mend num2date;

%*-- example usage --*; %let start = "12/6/2010"d;

%macro srv1(start); %local nstart nsrv1; %let nstart = %date2num(&start, informat=mmddyy10); %let nsrv1 = %sysfunc(intnx(mon, &nstart, 1)); %num2date(&nsrv1, format=mmddyy10) %mend srv1;

%put start=&start srv1=%srv1(&start); %*-- on log start="12/6/2010"d srv1="01/01/2011"d --*;


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