Nulstil sekvensen til en bestemt værdi

Du kan bruge et negativt trin til at nulstille en sekvens til en lavere værdi - dette script (det er bare en PL/SQL-blokversion af din) vil fungere med sekvensværdier større end 9999 uden problemer):

declare
 currval pls_integer;
 diff pls_integer;
begin
  select SQ_USER_ID.nextval into currval from dual;
  dbms_output.put_line('value before alter: ' || currval);
  diff := 99999 - currval;
  dbms_output.put_line('diff: ' || diff);
  execute immediate ' alter sequence SQ_USER_ID INCREMENT BY ' ||  diff || 'nocache';
  select SQ_USER_ID.nextval into currval from dual;
  dbms_output.put_line('value after alter: ' || currval);
  execute immediate 'alter sequence SQ_USER_ID INCREMENT BY 1  cache 20';
end;