for converting the timestamp to PST we use a query like
select start_ts AT 'America Pacific' from table_name;
How to specify the time zone for PDT. I was not able to find it in teradata docs
Related
I have an external data source automatically inserting data into my BigQuery table, this data source includes a timestamp field which does not have a timezone connected to it, however, I know this timestamp is in the Europe/Amsterdam timezone.
The problem here is that when this timestamp is inserted into BigQuery, BigQuery automatically defaults the timestamp to UTC, which it is not. And in my specific case, I want to convert this timestamp to UTC. However because BigQuery already defaulted the timestamp to UTC (while it is actually Europe/Amsterdam), I cannot easily convert it to the actual UTC timezone.
Is there any way to convert this timestamp, which BigQuery thinks is already UTC, to the actual UTC timezone within a query? I can't just give it a -02:00 offset due to Daylight Savings coming into play which changes this offset from 2 hours to only 1 hour depending on the time of year.
Any help would be appreciated, I have been kind of stuck on this :)
An example of the timestamp in BigQuery would be 2022-09-30 01:23:45 UTC
There is probably a better way but this should work
with
input as (select timestamp("2022-09-30 01:23:45 UTC") as ts)
select
ts,
timestamp(replace(cast(ts as string), '+00', " Europe/Amsterdam")) updated_ts
from input
ts
updated_ts
2022-09-30 01:23:45 UTC
2022-09-29 23:23:45 UTC
I am storing one timestamp column in Bigquery table. The source is of CET timestamp. But bigquery is storing it by default in UTC.
How to store it as CET timestamp? otherwise while fetching if also I am doing the timestamp conversion it is manipulating the timestamp value. that I do not want.
Or else I want to convert the value to UTC while fetching but for that I have to make Bigquery understood that the original column is in CET format. How to resolve this?
I'm trying to convert a string datetime, to a timestamp. try_to_timestamp isn't converting dates in the yyyy-mm-dd hh:mm:ss AM/PM format. I've only been able to solve this by striping out the time and casting it as a type time and concatenating it back with the date. Anyone know of a Snowflake function to handle this?
select try_to_timestamp('2019-11-18 4:01:29 PM +0000')
your timestamp doesn't quite fit the ISO or RTC formats so it's not automatically detecting it. You can manually put in your format though. Should look something like this:
select to_timestamp('2019-11-18 4:01:29 PM +0000', 'YYYY-MM-DD HH12:MI:SS AM TZHTZM')
For information on the various formats SnowFlake uses: https://docs.snowflake.net/manuals/user-guide/date-time-input-output.html
EDIT:
You may or may not want to cast it as a timestamp_tz (timestamp with timezone) to maintain timezone information
select to_timestamp_tz('2019-11-18 4:01:29 PM +0200', 'YYYY-MM-DD HH12:MI:SS AM TZHTZM');
Since try_to_timestamp does not support a format, you can set it before calling the
try_to_timestamp function. The example below is setting it at the session level.
alter session set TIMESTAMP_INPUT_FORMAT = 'YYYY-MM-DD HH12:MI:SS AM TZHTZM';
select try_to_timestamp('2019-11-18 4:01:29 PM +0000');
I have Sqlite database with table with date column, This column content a date values like Fri Dec 01 18:54:58 GMT+02:00 2017 and i want to convert this values to Unix timestamp, I try to slove this issue using strftime function i get null value.
Any idea how to solve this issue with Sqlite without a programmer language?
The command has been used is update Table set createDate=strftime('%s',createDate)*1000 where id=1
Sqlite Documentation
I have a vendor oracle DB storing values to a column creation_timestamp as timestamp(6) when i create an extract of that table and load it to HDFS and create hive schema with that column defined as timestamp it does not populate the field. However if I use string it is all there. I have other MSSQL datetime data that successfully stored as timestamp in hive so I am just a little unsure why the oracle timestamp data is not populating.
The oracle timestmap looks like this: 07-JAN-15 05.55.20.732754000 PM
I have a feeling hive does not like the month as letters as the documentation states:Strings: JDBC compliant java.sql.Timestamp format "YYYY-MM-DD HH:MM:SS.fffffffff" (9 decimal place precision)
How can I convert the oracle timestamp(6):07-JAN-15 05.55.20.732754000 PM to the java.sql.Timestamp format shown above?
I was able to alter my session and then export the table, hive has now accepted it as a timestamp
ALTER SESSION SET NLS_TIMESTAMP_FORMAT = 'YYYY-MM-DD HH24:MI:SS.FF';
07-JAN-15 05.55.20.732754000 PM is now: 2015-01-07 17:55:20.732754000
Use to_date in hive.
Example :
select TO_DATE(from_unixtime(UNIX_TIMESTAMP('7-MAR-13', 'd-MMMM-yy'))) from table_name
Refer : date functions