09:47:42 SQL> select trunc(months_between(to_date('20030101','yyyymmdd'),sysdate)) from dual;TRUNC(MONTHS_BETWEEN(TO_DATE('20030101','YYYYMMDD'),SYSDATE))
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-5实际:91
09:48:11 SQL>
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-5实际:91
09:48:11 SQL>
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