Remove Then Create

DECLARE 
   c_schema_name   CONSTANT VARCHAR2 (100) := 'HR'; 
   c_table_name    CONSTANT VARCHAR2 (100) := 'EMPLOYEES'; 
   e_no_such_table          EXCEPTION; 
   PRAGMA EXCEPTION_INIT (e_no_such_table, -942); 
BEGIN 
   BEGIN 
      EXECUTE IMMEDIATE 'DROP TABLE ' || c_table_name; 
   EXCEPTION 
      WHEN e_no_such_table 
      THEN 
         NULL; 
   END; 
 
   EXECUTE IMMEDIATE 
         'CREATE TABLE ' 
      || c_table_name 
      || ' AS SELECT * FROM ' 
      || c_schema_name 
      || '.' 
      || c_table_name; 
END;