Concatenate numeric variables into a single mm/yy date?

[SAS93]

I have 2 numeric variables for day and month respectively:  DD_LV and MM_LV. I also have a general YY_ variable for year.

I know I have to turn them into character variables first, but I ultimately want to concatenate them into a single MM/DD/YY date variable. 

What's the most efficient way to approach this? 

[Reeza]

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@SAS93 wrote:

I know I have to turn them into character variables first, but I ultimately want to concatenate them into a single MM/DD/YY date variable. 

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No, you do not have to turn them into character variables.

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data want_date;
mm_lv=10;
dd_lv=14; 
yy_variable = 2020;

date_var_num = mdy(mm_lv, dd_lv, yy_variable);
format date_var_num mmddyy10.;

date_var_char8 = put(date_var_num, mmddyys8.);
date_var_char10 = put(date_var_num, mmddyys10.);

run;

proc print;
run;

Results:

Obs	mm_lv	dd_lv	yy_variable	date_var_num	date_var_char8	date_var_char10
1	10	14	2020	10/14/2020	10/14/20	10/14/2020

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@SAS93 wrote:

I have 2 numeric variables for day and month respectively:  DD_LV and MM_LV. I also have a general YY_ variable for year.

I know I have to turn them into character variables first, but I ultimately want to concatenate them into a single MM/DD/YY date variable. 

What's the most efficient way to approach this? 

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