Update date/time in UNIX timestamp format

The datetime in my Oracle DB is being stored in UNIX Date Time format.
Is there a way I can set the date/time using an UPDATE statement in such a case.
for eg:
select id, creation_date, expiration_date from skel;
id creation_date expiration_date
400019 1213726470
400020 1213733052
400005 1210867973
400018 1213723608
I am looking to set the expiration date as creation_date + 1 year.
Could you please advise?

I am looking to update the value in the field. The values will still be in UNIX date/time format.Yes, but still: instead of continuing converting to Oracle dates and Unix dates, why not just store dates the way the datebase can deal with it the best?
You're probably storing your UNIX date/time formatted dates in the database as NUMBERS.
That is a great loss of lots of built-in date functionality Oracle Database provides.
If you insist on staying on that road, then explore my previous links, you will find your answer:
Convert epoch number to date, do arithmatic and convert the result back to epoch number.
That is overkill.
It won't work/scale/perform/whatever in the end. It is a bad approach.
So, please reconsider this:
Why are you storing dates as numbers?
Convert those numbers to dates once, and be done with it for ever after and benefit from all the builtin date-functionality Oracle database comes with, or convince us that you really have a valid reason to store dates in UNIX date/time format into an Oracle Database.
and my last date was...uuhhmm... never mind ;)

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Looking for generic WebService for update date & time in my C# WinForm program

hi
looking for generic WebService for update date & time in my C# WinForm program
thanks

hi
looking for generic WebService for update date & time in my C# WinForm program
thanks
Hello,
I agree with Cor that since this forum is for issues related to winodws form controls and features, but this issue is mainly related to the webservice which is working for updating time, you could consider posting this issue on other site, or you could
also consider creating your webservice by checking this document
Your first C# Web Service.
If you get any issues when create your webservice, you could post this issue in the following forum.
http://forums.asp.net/28.aspx/1?WCF+ASMX+and+other+Web+Services
Regards.
Carl
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How to find the last update date time and user of record field peoplecode

how to find the last update date time record field peoplecode?
Thank you.

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[Macromedia][SequeLink JDBC Driver][ODBC
Socket][Microsoft][ODBC SQL Server Driver][SQL Server]Conversion
failed when converting date and/or time from character string.
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Hello everyone,
is the long that is returned by the getTime() method in the date class supposed to be the same as a unix timestamp?
Below I have a time from yesterday, but when i compare this with System.currentTimeMillis(), the currentTime has a smaller timestamp
code]SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy-kk:mm:ss");
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sorry, here it is again
is the long that is returned by the getTime() method in the date class supposed to be the same as a unix timestamp?
Below I have a time from yesterday, but when i compare this with System.currentTimeMillis(), the currentTime has a smaller timestamp
SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy-kk:mm:ss");
long expiryDate=0;
try{
Date d = sdf.parse("11-11-2006-19:07:50");
expiryDate = d.getTime(); results in 1163358470000
catch(ParseException pe){
pe.printStackTrace();
}yesterdays time is 1163358470000
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Hi Frank,
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Using Numbers 09 ver 2.0.5 (368)

CP,
An up-to-date Unix Time would be provided by:
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Hi,
I need to select the entries between two dates from an Oracle db. The Oracle db has a column with Unix timestamps. I use the following querry, but it doesnt seem to be working as desired.
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Hi: I have a integer field (utime) in a table that stores the UNIX epoch time for a record. Every sunday around 2:00AM, I am running a query which should return records from last week. I want my condition to have the following in it's where
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AND
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Yes, you seem to have worked out the logic of the expression correctly. Though, in your earlier post you had said that you want records within the range:
WHERE utime between
(convert sysdate-7 12:00AM to Unix time)
AND
(convert yesterday 11:59PM to Unix time)But now you are adding 14400 (4hrs) and deducting 72000 (20hrs) in your expression
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WHERE utime between
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((TRUNC(SYSDATE-6,'DD')-TO_DATE('01/01/1970','MM/DD/YYYY'))*(24*60*60))-72000;Which makes your new condition to be:
WHERE utime between
(convert sysdate 04:00AM to Unix time)
AND
(convert sysdate-7 04:00AM to Unix time)
Are you sure you need records from 4am-to-4am and not midnight-to-midnight? And yes, with BETWEEN condition you need to use expression '<low-value> AND <high-value>' and not '<high-value> AND <low-value>'!
Besides this,
1. You might want to use bind variables rather than hard-coded expressions in your statement. Infact your expression uses SYSDATE, so Oracle would need to get current SYSDATE for each row to evaluate the expression. Which is going to have its impact on performance. As your start-time and end-time values are not dependent on table data maybe you could have a code like this (assuming it is PLSQL code):
start_time constant number := (convert sysdate-7 12:00AM to Unix time);
end_time constant number := (convert yesterday 11:59PM to Unix time);
<DML or Cursor with condition>
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start_time constant number := f_convert_to_unix_time( trunc( sysdate-7 ));
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<DML or Cursor with condition>
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Update date/time in UNIX timestamp format

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