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Use the Retain Statement to reorder variables. No data is lost and the variable attributes are kept. Works for SAS 8.2 and up.

data neworder_retain;
  retain Name Age Sex Weight Height;
  set sashelp.class;
run;

Posted By: webonomic on March 1, 2013

Perhaps a better example:

data have; input var1 var2 var3 var4; cards; 11 12 13 14 21 22 23 24 31 32 33 34 ; run;

data reordered; retain var4 var3 var2 var1; set have; run;

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