SAS PROC SQL - How to add months to a date

Question

How can I add months to a date? I've tried the function ADD_MONTHS(<my date>, 6) and DATEADD(Month, 6, <my date>) but both functions are not recognized.

What's the correct function to use?

Answer 1

I found an answer in sas community: function intnx()

proc sql;
    select *,intnx('month',<my_date>, 6) as incdate format=date9. from have;
quit;