to_timestamp_tz() funkcja z at time zone Klauzula może być użyta do konwersji literału ciągu na wartość timestamp with time zone typ danych:
SQL> with t1(tm) as(
2 select '2013-11-08T10:11:31+02:00' from dual
3 )
4 select to_timestamp_tz(tm, 'yyyy-mm-dd"T"hh24:mi:ss TZH:TZM')
5 at time zone '+4:00' as this_way
6 , to_timestamp_tz(tm, 'yyyy-mm-dd"T"hh24:mi:ss TZH:TZM')
7 at time zone 'Europe/Moscow' as or_this_way
8 from t1
9 /
Wynik:
THIS_WAY OR_THIS_WAY
----------------------------------------------------------------------------
2013-11-08 12.11.31 PM +04:00 2013-11-08 12.11.31 PM EUROPE/MOSCOW
A potem używamy cast() funkcja do wytworzenia wartości date typ danych:
with t1(tm) as(
select '2013-11-08T10:11:31+02:00' from dual
)
select cast(to_timestamp_tz(tm, 'yyyy-mm-dd"T"hh24:mi:ss TZH:TZM')
at time zone '+4:00' as date) as this_way
, cast(to_timestamp_tz(tm, 'yyyy-mm-dd"T"hh24:mi:ss TZH:TZM')
at time zone 'Europe/Moscow' as date) as or_this_way
from t1
This_Way Or_This_Way
------------------------------------------
2013-11-08 12:11:31 2013-11-08 12:11:31
Dowiedz się więcej o klauzuli at time zone i funkcji to_timestamp_tz().
