Split data set to many data sets

[Ronein]

Hello

I want to use this code to split data set into many data sets.

In this example there will be 3 data sets but in real world there will be 1000 data sets so this code work very well.

The only problem is that the data set name is not as I wish.

I want that in data set name I will see the date in format YYYYMMDD.

So I expact to get 3 dats sets:

t2020112 

t2020312 

t2020512 

What is the way to do it please?

Data ttt;
format date date9.;
input ID origin $ date :date9.;
cards;
1 EU 01DEC2020'd
2 EU 03DEC2020'd
3 USA 01DEC2020'd
4 USA 05DEC2020'd
5 Africa 05DEC2020'd
6 Africa 01DEC2020'd
;
Run;


%let bysplit=date; 
data have (index = (&bysplit.)) ;   
set ttt ; 
run ;                                                                                                                                   
                                                                                                                                        
data _null_ ;                                                                                                                           
  if _n_ = 1 then do ;                                                                                                                  
    dcl hash h (dataset: "have (obs=0)", multidata:"y") ;                                                                               
    h.definekey ("&bysplit.") ;                                                                                                            
    h.definedata (all: "y") ;                                                                                                           
    h.definedone () ;                                                                                                                   
  end ;                                                                                                                                 
  do until (last.&bysplit.) ;                                                                                                              
    set have ;                                                                                                                          
    by &bysplit. ;                                                                                                                         
    h.add() ;                                                                                                                           
  end ;                                                                                                                                 
  h.output (dataset: catx ("_", "tbl", &bysplit.)) ;                                                                                        
  h.clear() ;                                                                                                                           
run ;   

[japelin · Accepted solution]

You say "format YYYYMMDD", but the data looks like YYYYDDMM.
If it's YYYYDDMM, try using this.

  h.output (dataset: cats ("t", year(&bysplit.),day(&bysplit.),month(&bysplit.)));

If you need YYYYMMDD format, replace to this code.

  h.output (dataset: cats ("t", put(&bysplit.,yymmddn8.)));

[Kurt_Bremser]

t2020112

Is this 2020-01-12 or 2020-11-02, or a typing mistake?

[Ronein]

Sorry,I mean 

t20201102