ORA-1882 when attempting to use daylight savings time
We receive a file from an external provider. One of the columns contains a timestamp in the form "05/01/2014 09:25:41 AM EDT". I am trying to insert this into a TIMESTAMP WITH TIME ZONE column with the following SQL:
INSERT INTO table VALUES (to_timestamp_tz('05/01/2014 09:25:41 AM EDT', 'MM/DD/YYYY HH12:MI:SS AM TZR TZD'));
That is when I get
ORA-1882: timezone region not found. I've also tried specifying this like
INSERT INTO table VALUES (to_timestamp_tz('05/01/2014 09:25:41 AM EST EDT', 'MM/DD/YYYY HH12:MI:SS AM TZR TZD'));
but then I get
ORA-1857: not a valid time zone.
Anyone have an idea how I can insert this? We are running Oracle 22.214.171.124. I can see in
v$timezone_names that EST and EDT both appear to be valid tzabbrev for tzname 'America/New York'.
It appears that if I substitute EST5EDT for EDT (and CST6CDT, MST7MDT, and PST8PDT for CST, MST, and PST, respectively) , I can get the behavior I need. The problem with this is that I need to know what these substitutions are in advance so I can code around them. I still need to know how to handle potential daylight savings time issues with other timezones.
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