TimeStamp with time zone vs java Date

In the developer's preview release notes, I read about the extended support on Oracle TimeStamp. We are currently planning to migrate current TIMESTAMP columns to TIMESTAMP WITH TIMEZONE to keep the user time zone with the typed date. Here is my question: Which time zone is persisted using a direct to field mapping between a java.util.Date and a TIMESTAMPTZ column? As the java.util.Date contains no time zone (in opposition to java.util.Calendar), does TopLink uses the JVM time zone? WHat is the best to data structure to keep date/time & time zone in our entities? Thanks, Yannick.

I believe it would be the local timezone of the session. If you map a Date to the TIMESTAMP TZ then the SQL written out will not include a TZ value.
Typically if you wish to map to a TIMESTAMPTZ field you would want to use an object in the model that can hold both the Timestamp and TZ values. This is most commonly a Calendar.
Doug

Similar Messages

Partitioning on a table on the field TIMESTAMP WITH TIME ZONE

Hi I have a very large size table which has grown to a size that we are not able to query it efficiently. We have decided to partition the table. But the issue is the table has a TIMESTAMP WITH TIME ZONE field and not DATE. I have found some links on the web which state this might cause an error. I am planning to create a temp table with the partition rules and at the same time copy data from the original one.
using CREATE TABLE XYZ PARTITION BY RANGE (ABC) ( ---- Partition rules ------) NOLOGGING AS SELECT * FROM XYZ_ACTUAL where 1 = 2;
Then if it works fine, I would rename the table with partitions to the actual name.
Should all this be fine?
The database is very critical. Hence the dilemma.

Have you tried converting the timestamp with time zone to a character string as a partition key, possibly using an edit mask to control the timestamp components used?
Your plan sounds OK to me - if you can get the partitioned table created - but I would test in a development first o see where the lLw of Unintended Consequences might decide to manifest itself.
Edited by: riedelme on Dec 8, 2009 9:13 AM

TIMESTAMP WITH TIME ZONE

Hi Team, will Import into a table I am getting the below error message
Error Message
Record 1: Rejected - Error on table MTN_BUNDLES_EXPIRY_MIG, column EXPIRY_DATE_T.
ORA-01840: input value not long enough for date format
The data client provide in .XLs file
2013-08-31 17:14:56
My Table Structure is
CREATE TABLE tmp_mtnuga_3g_expiry_mig
    MSISDN_V            VARCHAR2 (50),
    expiry_Date_t         TIMESTAMP(6) WITH TIME ZONE
    status_date_t          TIMESTAMP(6) WITH TIME ZONE
    GOT_STARTER_PACK_V NUMBER(10)
I am using 2 option to import into a table
First option using Toad ---> Import Table -- option here i am getting error like
The format is not matched.
Second option using SQL Loader-->
LOAD DATA
INFILE 'D:\ss\TT-Projects\Customer Apps\Client Dump\3GBundle.csv'
BADFILE 'D:\dd\TT-Projects\Customer Apps\Client Dump\3GBundle.bad'
DISCARDFILE 'D:\dd\TT-Projects\Customer Apps\Client Dump\3GBundle.dsc'
INTO TABLE tmp_mtnuga_3g_expiry_mig
INSERT
(MSISDN_V,
EXPIRY_DATE_T,
STATUS_DATE_T,
GOT_STARTER_PACK_V
Please guide me how solve the TimeStamp

Check Part II SQL*Loader I can't remember when I last used it (being server side I use External Tables), but it should turn out something like
LOAD DATA
INFILE 'D:\ss\TT-Projects\Customer Apps\Client Dump\3GBundle.csv'
BADFILE 'D:\dd\TT-Projects\Customer Apps\Client Dump\3GBundle.bad'
DISCARDFILE 'D:\dd\TT-Projects\Customer Apps\Client Dump\3GBundle.dsc'
INSERT INTO TABLE tmp_mtnuga_3g_expiry_mig
fields terminated by ',' optionally enclosed by '"'
(MSISDN_V,
EXPIRY_DATE_T char "to_timestamp_tz(:EXPIRY_DATE_T,'yyyy-mm-dd hh24:mi:sstzh:tzm')",
STATUS_DATE_T char "to_timestamp_tz(:STATUS_DATE_T,'yyyy-mm-dd hh24:mi:sstzh:tzm')",
GOT_STARTER_PACK_V
you must adjust the mask to match your data
Regards
Etbin

Reg Custom Time Zone in java

Hi ,
Have configured the custom Time Zone (SAST) in the Linux box.
The sh clock of the Linux box gives the custom Time Zone (SAST).
Whereas the java application gives the date in GMT Time Zone.
Noticed from the java docs that, if the custom time zone string (SAST) doesn't match the syntax ( like GMT +Value or GMT-Value) , "GMT" is used.
Even if we create SimpleTimeZone with offset from GMT, it displays the date in GMT format. It wont display the custom Time Zone.
Could anybody please suggest me a way to support Custom Time Zone in java?
(i.e.) The java application should give the date in custom Time Zone (SAST) instead of GMT format.
FYI : Java version : "1.5.0_17"
================== Snippet from java docs====================================
The format is locale independent and digits must be taken from the Basic Latin block of the Unicode standard. No daylight saving time transition schedule can be specified with a custom time zone ID. If the specified string doesn't match the syntax, "GMT" is used.
Java doc URL : http://java.sun.com/j2se/1.4.2/docs/api/java/util/TimeZone.html

hi Kumar,
You can change the timezone of the JVMs using the -Duser.timezone
parameter, add -Duser.timezone=<timezone> to all dispatcher and
server processes in your systems, using the configtool
1) open config tool
2) select yes
3) select "cluster-data->instanceXXX->serverXXX/Dispatcher"
4) in "Java parameters" add new line "-Duser.timezone=<timezone>"
5) click "Apply changes"
6) restart your instance
Let me know how is the result
Regards

Change the time zone in Java System only

Hi there,
Does anyone knows where to change the time zone in Java system only? I know in ABAP they have t-code: STZAC? where do I change in Java? Configtool or visual admin? what is the service name or parameter for this?
Thanks
Kumar

hi Kumar,
You can change the timezone of the JVMs using the -Duser.timezone
parameter, add -Duser.timezone=<timezone> to all dispatcher and
server processes in your systems, using the configtool
1) open config tool
2) select yes
3) select "cluster-data->instanceXXX->serverXXX/Dispatcher"
4) in "Java parameters" add new line "-Duser.timezone=<timezone>"
5) click "Apply changes"
6) restart your instance
Let me know how is the result
Regards

How to deal with time zone while upgrading the database?

Hi,
How to deal with time zone while upgrading the database?
Thanks
Edited by: user12135020 on Jul 4, 2011 3:06 AM

Hello,
I answered to a Wrong post.
Best regards,
Jean-Valentin
Edited by: Lubiez Jean-Valentin on Jul 4, 2011 12:15 PM

Problem in converting the String to Date with time zone GMT

Hi,
When I tried to convert the string 12/05/2009 to Date, the time zone is set to BST.On the other hand, for the date 12/12/2009, the time zone is set to GMT. What should I do to get the time zone as GMT all the time.?
SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");
String dateString = "12/05/2009";
System.out.println(myDate.toString());

I think you are all missing the point. java.util.Date objects always alway always store the date as the number of milliseconds since 1/1/1970 UTC so the only TimeZone they have its the implicit UTC. When you use the Date.toString() method the toString() method gets the default time zone from your environment and formats the data accordingly. This means that the same Date object will, by default, produce a different result for France and Australia and the US.
So, if you have the date "12/5/2009" as a String then to convert it to a java.util.Date you must specify what TimeZone is implied. If it is your system time zone then you can just create a SimpleDateFormat object with the correct format and then use the parse() method to create the java.util.Date object and this will automatically be converted to UTC. If the date String represents some other time zone then you must explicitly set the time zone of the SimpleDateFormat object before parsing the string.
The same approach applies when converting a java.util.Date object to a String. If you want anything other than your system time zone then you must explicitly tell the SimpleDateFormat what time zone you want the result formatted for.

Changing date and time is wrong with time zone problem

Okay, searched some of the forums, but didn't get the most correct answer to this:
I just imported all my photos into Aperture from iPhoto (chose to have Aperture manage files as I don't plan on using iPhoto any longer. When I imported the files, I decided to do some organizing by date into folders. no problem.
In some of my projects, I found some files that I imported from scans or got from others who had a film roll and processed it at a lab, and the dates from those files aren't the dates that the event took place. I went into Metadata>Adjust date and time, and changed the date (not so much the time I'm worried about), and checked the "change the masters" little box, too.
After I close out of that box, the picture has the wrong date. I've determined this is because of the time zone support. I currently live in Japan, and I would like my photos here to show up as the date in the place they were taken. I think the date I enter, it thinks is the date I'm currently in (GMT +9), but aperture chooses to convert the date as if I was saying "hey, the picture I took happened on "date" in GMT +0:00)" which then makes it look in the metadata view as if it happened a day earlier.
Any imported photos come in as the correct date and time and correct time zone, as far as I can see. It's just when I change the date and time it thinks I mean to have aperture convert it to GMT + 0:00. (but on a little more of a funny side... older pictures that happened in other time zones back in the states it lists the correct date and time for when the picture was taken, but "says" it's GMT +9:00) (another issue I'll deal with later maybe!)
Hope I've described it in such a way that you can get it.

I changed time and now my MacBook won't work

How to load date with time zone using sql loader???

Hi All,
How to load following value in the table using SQL loader.
[11/Jan/2006:15:20:14 -0800]
What should be the datatype of the column in the table. I have tried with "timestamp with local time zone", but unable to load the record using sql loader. What should be the format string in the loader control file to load this type of record.
Any help in this regard is highly appreciated.
Sameer

Try something like this in your control file:
mycol char "TO_TIMESTAMP_TZ(mycol, 'DD/MON/YYYY:HH24:MI:SS TZH:TZM')"
[pre]
Message was edited by:
Jens Petersen

Trouble with time-zone metadata

Using Bridge 1.0.4 (and also Bridge CS3 Beta 2) on a PC with 1 GB RAM under Windows XP SP2, I have problems with the date-and-time of digital images whenever the camera, at shooting time, was located in a different time zone than the PC is at image-processing time. I already issued a Bridge feature request in the appropriate user-to-user forum months ago, but obviously to no avail yet.
Bridge, or the underlying XMP system, insists to assign the PC's local time-zone information to the image files, no matter if that's appropriate or not. As far as I can see, in Bridge there is no user interface element provided to enable the user to change the images' time zones. In my particular case, I have images shot at e. g. 8:15 AM +1 but they end up being falsely marked as taken at 8:15 AM +2 (I am located in Central Europe). So the metadata item exif:DateTimeOriginal reads "2007-04-08T08:15:40+02:00" while it is supposed to be "2007-04-08T08:15:40+01:00".
So eventually I digged into Brdge scripting and wrote a script that scans through all image file in the current folder, reads their date-and-time information (i. e. exif:DateTimeOriginal and exif:DateTimeDigitized) and changes all "+02:00" substrings to "+01:00". There are more date-and-time entries in the metadata but those refer to modification dates so they can be left the way they happen to be.
This strategy seems to work well ... but only with image files that don't have XMP sidecar files, i. e. JPEG and TIFF files in particular. Strangely, images that store their metadata in XMP sidecar files, i. e. raw image files, won't accept the correction. Or rather, they do accept it but only temporarily. Right after running my "AdjustTimezone" script the time-zone data is correct (+1) but after a while it's magically back to were it was, i. e. +2. I already suspected it might be a cache thing, but resetting and updating the folder's cache immediately after having run the script doesn't help.
What is happening here? How can I store time-zone information in XMP sidecar files reliably and permanently? And is there a more comfortable way to access the time-zone information than through a home-made Bridge script?
-- Olaf
P.S. I also posted this into the Bridge Windows forum.

Olaf,
did you get an answer on the Bridge forum? Otherwise, I'll forward this internally.
Frank

How can I truncate the time zone from a Date object without using String?

Does anyone know how to truncate the time zone portion of a Date object and maintain the object as Date, NOT String?
I just need the date, i.e., 05/02/2008 as a Date.
Thanks.
JDev1

Although you haven't said so, I expect you must be having some problem with that?
My wild guess: the server is creating a Date object and setting its time component to zero (midnight). Of course since Date doesn't have a timezone, that would be midnight in the server's timezone. Then you are interpreting that date as if it were in your timezone, and since you are west of the server, it appears to be 11 PM or 9 PM or something on the day before.
What we do is to send our timezone to the server and tell the server to use it when creating the Date object. Alternatively, when formatting the Date object you could use a SimpleDateFormat with the server's timezone applied. There are no doubt other solutions that could be provided if we had a description of your problem.

Help!!!!! proble with time zone

Hi!
I�m traying to convert from the time zone that uses in USA to the time we use in Mexico, the diferences it's about 6 hours les, but when I compile the program it returns:
has protected access in java.util.Calendar
and I don't Know what�s wrong in the program, so, please, can somebody help me and show me the way it has to do it
thanks
Lis

I would use the DateFormat object for your specific locale and time zone.
For example:Date date = // the Date object
Locale locale = // your mexican locale object
DateFormat dateFormat = DateFormat.getDateTimeInstance(
DateFormat.LONG, DateFormat.LONG, locale);
dateFormat.setTimeZone(TimeZone.getTimeZone(yourTimezoneID));
System.out.println(dateFormat.format(date));If you don't know how to get the locale or time zone you need, the Locale and TimeZone objects contain a list of the available locales and the available TimeZone ids respectively. From these, you can list all possible TimeZone and Locale objects and decide which one is right for your application. If you are physically located in Mexico, your Locale and TimeZone may already be set up properly using Locale.getDefault() and TimeZone.getDefault();
i.e.Locale[] availableLocales = Locale.getAvailableLocales();
String[] availableTimeZoneIds = TimeZone.getAvailableIds();

How do I fix email timestamps with time in future?

Emails sent to and from my iPhone 4S are now showing on the phone as sent five hours in the future.This problem started shortly after peforming the newest iPhone update of a few weeks ago. Email account is not set up through the iCloud and the time zone settings on iPhone and iCloud are correct CST. Email account also is linked/used on a PC running Outlook and timestamps on those emails are correct. Any suggestions appreciated.

Sounds like it's using GMT (which right now is 5 hours later than CST right now). You might check with your email provider to see if their servers are incorrectly set for your location.

Problems with time zones - my phone still switches to winter time

I know that lots of Russian Apple customers experienced inconvenience with the switch to winter time (1 hour back) on the last days of October, because since this year president Medvedev decided that Russia should not get involved into that process, but all of the devices that were synced to the automatic time made a switch back. The problem isn't solved if you turn off the automatic timing option, because sms messages still appear in 1 hour difference. So if you get a message on 10 pm it is displayed as you got it on 9 pm, which makes a big confuse. I suppose that someone already posted a message about this problem, but all I found is to fix the file that rules the time zones manually by downloading loads of software. I am just a user and would not manage to do it by my self. I just can't figure out why Apple Inc, being such a trusted and wise company, still didn't make a solution for this embarrassing problem and didn't change their MAIN CLOCKS so all of the devices can easily synchronize with it, or, make new software for iPhones and iPads.
So, what do we do now? Thank you!
- Diana,
Iphone 4
Soft 4.3.5

I did look at the other threads, but none of them quite matched what I'm seeing. As I said it used to work just fine for me and I only noticed a problem recently. Looking back it seems that timestamps have been off since the begining of 2011, but things look ok before then.
Just for the info is this the first time you've imported in the same time zone you've shot in with the camera time set to another time zone? Just curious because Aperture does seem to take into account the machines time zone as well as the camera's and the shoot's location.
As I mentioned in the post, my regular way was to shoot with camera set to EDT/EST and do a time zone conversion. I didn't have problems before this year. I would expect the OS timezone to be where I was shooting, but not neccessarily.

With Time Zone Support on Calendar no longer automatically adjust to the local timezone.

Apples support forums are riddled with Discussions about problems with being able to dicate a specific time zone for appointments. Many of these postings, as well as their corresponding solutions, are unnecessarily lenghtly when the root cause of all of this is a one very simple mistake by Apple. Right now to be able to assign a specifc timezone for an appointment using the Calendar app on the iPhone you have to have "Time Zone Support" turned on in Settings. The problem is that when you turn on this feature the Calendar app stops automatically updating the calendar to reflect the local time zone you are in. These are simply two seperate items that have no reason to be tied together. Apple could easily correct almost all of the issues people are having with this topic if it simply split this into two seperate options that users can turn on/off seprately:
1.) Enter time zone for each appointment. YES/NO
2.) Adjust Calendar to the local timezone. YES/NO
It is virturally incomprehensible that Apple has not fixed this. It was clearly a mistake.

I have this problem too and am frustrated - it's not solving no matter what i do. And now Siri is totally bonkers too on this new software update - can't even pull from my contacts when I ask her to look someone up. What the heck is going on at Apple software? Have they been hiring a bunch of arrogant, crap programmers? I am seriously thinking of not buying an iPhone again after having one for 5 years. So disappointed!!

TimeStamp with time zone vs java Date

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