Solved

Convert SQL datetime to timestamp

Posted on 2004-09-06
6
8,774 Views
Last Modified: 2011-09-20
Hi,
Im having a big problem with yet another simple task :)
Trying to get MS SQL to convert its datetime type to a UNIX timestamp
How can this be done?  I know in MySQL there is the UNIX_TIMESTAMP function, but how does this relate in mssql?
The problem exists becuase I am trying to use PHP to convert the mssql datetime to a unix timestamp, and then back.
If I get a date from the database such as 2004-Sep-03 05:09:00 and use the php function strtotime() on that, it converts it, but then using strftime() converts it back and it ends up being somewhere around 2010!!
Help!
0
Comment
Question by:maunded
  • 4
  • 2
6 Comments
 
LVL 10

Accepted Solution

by:
imrancs earned 125 total points
ID: 11994636
UNIX_TIMESTAMP()

If called with no argument, returns a Unix timestamp (seconds since '1970-01-01 00:00:00' GMT) as an unsigned integer. If UNIX_TIMESTAMP() is called with a date argument, it returns the value of the argument as seconds since '1970-01-01 00:00:00'


here is how can you do it in MSSQL

select datediff(second, '1970-01-01 00:00:00','2004-Sep-03 05:09:00')

Imran
0
 
LVL 1

Author Comment

by:maunded
ID: 11995027
Imran my man you are a genius
0
 
LVL 10

Expert Comment

by:imrancs
ID: 11995210
Glad if I could help!!!


Imran
0
Ransomware-A Revenue Bonanza for Service Providers

Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat.  The purpose of this eBook is to educate the reader about ransomware attacks.

 
LVL 1

Author Comment

by:maunded
ID: 11995315
Actually that hasnt quite solved my problem I just found out, when I convert the timestamp back in php, its offset by +10hrs (something to do with the fact my timezone is -10 I guess
0
 
LVL 10

Expert Comment

by:imrancs
ID: 11995336
yes you are right, this difference is becuase of timezone.

UNIX_TIMESTAMP() actually calculates according to GMT.


Imran
0
 
LVL 10

Expert Comment

by:imrancs
ID: 11995421
here is how you can get difference (in hours) from GMT


select datediff(hour,getdate(), getutcdate()) AS GMTDiff


Imran
0

Featured Post

Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Why is this different from all of the other step by step guides?  Because I make a living as a DBA and not as a writer and I lived through this experience. Defining the name: When I talk to people they say different names on this subject stuff l…
The Delta outage: 650 cancelled flights, more than 1200 delayed flights, thousands of frustrated customers, tens of millions of dollars in damages – plus untold reputational damage to one of the world’s most trusted airlines. All due to a catastroph…
Familiarize people with the process of utilizing SQL Server functions from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Microsoft Ac…
Viewers will learn how to use the SELECT statement in SQL to return specific rows and columns, with various degrees of sorting and limits in place.

785 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question