oracle日期正則表達式

1900-2999日期正則表達式

• YYYY-MM-DD

 select case
            when regexp_like('2999-11-30',
                             '^((((19|2\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((19|2\d)\d{2})-(0?[469]|11)-(0?[1-9]|[12]\d|30))|(((19|2\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|((19([02468][048]|13579)[26]|2\d(0[48]|[13579][26]|[2468][048])|(2000))-0?2-(0?[1-9]|[12]\d)))$') then
             1
            else
             0
          end
     from dual;

• YYYY/MM/DD

 select case
            when regexp_like('2999/11/30',
                             '^((((19|2\d)\d{2})/(0?[13578]|1[02])/(0?[1-9]|[12]\d|3[01]))|(((19|2\d)\d{2})/(0?[469]|11)/(0?[1-9]|[12]\d|30))|(((19|2\d)\d{2})/0?2/(0?[1-9]|1\d|2[0-8]))|((19([02468][048]|13579)[26]|2\d(0[48]|[13579][26]|[2468][048])|(2000))/0?2/(0?[1-9]|[12]\d)))$') then
             1
            else
             0
          end
     from dual;

• YYYY.MM.DD

select case
            when regexp_like('2012.02.29',
                             '^((((19|2\d)\d{2})\.(0?[13578]|1[02])\.(0?[1-9]|[12]\d|3[01]))|(((19|2\d)\d{2})\.(0?[469]|11)\.(0?[1-9]|[12]\d|30))|(((19|2\d)\d{2})\.0?2\.(0?[1-9]|1\d|2[0-8]))|((19([02468][048]|13579)[26]|2\d(0[48]|[13579][26]|[2468][048])|(2000))\.0?2\.(0?[1-9]|[12]\d)))$') then
             1
            else
             0
          end
     from dual;