time zone - with unknown time zone

I am able to run it:


Select current_timestamp to the time zone "America/Los Angeles.
of the double


My problem is that the zone, which in this case is ' American/of Los Angeles', does not know until the moment of execution. So I want to replace it with a bind variable or pl/sql. When I do this:

Select current_timestamp to the zone: tz
of the double


I get "Keyword not found". Any ideas?

Thank you.

Published by: usmanwvu on August 2, 2012 13:52

Published by: usmanwvu on August 2, 2012 13:53

If you do this in PL/SQL, you don't have to select the double at all - you could do something like

declare
  v_ts   TIMESTAMP WITH TIME ZONE;
  v_tz   VARCHAR2(30);
begin
  v_tz := 'American/Los_Angeles';
  v_ts := CURRENT_TIMESTAMP AT TIME ZONE v_tz;
end;
/

Alternatively, in SQL, if you si vous Enroulez wrap the bind variable in an NVL function you can either give a default zone valid or invalid according to how you want it behaves on no entry:

select current_timestamp at time zone NVL(:TZ,'American/Los_Angeles') from dual;

Kind regards
Bob

Tags: Database

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