gaohan 发表于 2018-9-13 11:33:47

oracle yy&RR date-pl

  --current date
  HR@prod> select to_char(sysdate,'yyyy-mm-dd') from dual;
  TO_CHAR(SY
  ----------
  2013-11-06
  -- 06-11-95dd-mm-rr
  HR@prod> select to_date('06-11-95','dd-mm-rr') from dual;
  TO_DATE('
  ---------
  06-NOV-95
  HR@prod> select to_char(to_date('06-11-95','dd-mm-rr'),'yyyy-mm-dd') from dual;
  TO_CHAR(TO
  ----------
  1995-11-06
  -- 06-11-95 dd-mm-yy
  HR@prod> select to_char(to_date('06-11-95','dd-mm-yy'),'yyyy-mm-dd') from dual;
  TO_CHAR(TO
  ----------
  2095-11-06
  --06-11-20 dd-mm-rr
  HR@prod> select to_char(to_date('06-11-20','dd-mm-rr'),'yyyy-mm-dd') from dual;
  TO_CHAR(TO
  ----------
  2020-11-06
  --06-11-20 dd-mm-yy
  HR@prod> select to_char(to_date('06-11-20','dd-mm-yy'),'yyyy-mm-dd') from dual;
  TO_CHAR(TO
  ----------
  2020-11-06

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