Macro date

[Thalitacosta]

%let date_start = 201910;
%let date_end = 202003;

%macro dt;
%do aa = &date_start. %to &date_end.;

After that I create tables with the name of each year/month, using the variable "aa". How do i stop at month 12? Because it is creating tables 201913, 201914 etc.

[Tom]

If you want to count by months then use DATE values and not digit strings.

%macro dt(start,end);
%local date_start date_end offset date;
%let date_start=%sysfunc(inputn(&start,yymmn6.));
%let date_end=%sysfunc(inputn(&end,yymmn6.));
%do offset = 0 %to %sysfunc(intck(month,&date_start,&date_end));
  %let date=%sysfunc(intnx(month,&date_start,&offset),yymmn6.);
  %put &=offset &=date ;
%end;
%mend ;

%dt(start=201910,end=202003);

Results:

OFFSET=0 DATE=201910
OFFSET=1 DATE=201911
OFFSET=2 DATE=201912
OFFSET=3 DATE=202001
OFFSET=4 DATE=202002
OFFSET=5 DATE=202003