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create or replace procedure TEST is
begin
DBMS_SESSION.set_nls('NLS_DATE_FORMAT','''YYYY-MM-DD HH24:MI:SS''');
DBMS_OUTPUT.PUT_LINE('HelloWorld!');
DBMS_OUTPUT.put_line(SYSDATE);
end TEST;
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set   serveroutput   on
exec TEST();
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  2  test();
  3  end;
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