to_date('01/01/1970', 'MM/DD/YYYY') + time_stamp / 86400
is a DATE expression
formatting of DATE values is done with the TO_CHAR function (see SQL Reference Manual)
for example:
to_char (to_date('01/01/1970', 'MM/DD/YYYY') + time_stamp / 86400,
'YYYY/MM/DD HH24:MI:SS')
-----Original Message-----
From: Nguyen, David M [mailto:[EMAIL PROTECTED]]
Sent: vendredi, 7. mars 2003 13:24
To: Multiple recipients of list ORACLE-L
Subject: RE: Date format is unreadable
It works better but it still does give correct output. I'd like to see hour,min,sec as well.
1 select user_name,node_name,to_date('01/01/1970', 'MM/DD/YYYY') + time_stamp / 86400 from user_activity_log
2 from user_activity_log
3 where user_name = 'admin'
4* order by time_stamp
SQL> /
USER_NAME NODE_NAME TO_DATE('
-------------------- -------------------- ---------
admin Insight Server 01-MAY-19
admin Insight Server 11-MAY-03
admin Insight Server 11-NOV-01
admin Insight Server 24-DEC-13
Thanks,
David
-----Original Message-----
From: Stephane Faroult [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 05, 2003 4:40 PM
To: Multiple recipients of list ORACLE-L
Subject: Re: Date format is unreadable
Ooops. Should have written
to_date('01/01/1970', 'MM/DD/YYYY') + TIME_STAMP / 86400
The timestamp is in seconds since 1/1/1970, while Oracle date arithmetic
is in days.
Sorry.
"Nguyen, David M" wrote:
>
> Yes, it is a Unix timestamp. I use your syntax and I got following error.
>
> 1 select
> user_name,client_ip,node_name,to_date('01/01/1970','MM/DD/YYYY')+tig
> 2 where user_name = 'admin'
>
> 3* order by time_stamp
>
> SQL> /
>
> select user_name,client_ip,node_name,to_date('01/01/1970','MM/DD/YYYY') +
> time_stamp from user_activity_log
> *
>
> ERROR at line 1:
>
> ORA-01841: (full) year must be between -4713 and +9999, and not be 0
>
>
>
> -----Original Message-----
> Sent: Wednesday, March 05, 2003 3:25 PM
> To: Multiple recipients of list ORACLE-L
>
> David,
>
> I presume that your date is a Unix timestamp.
>
> Try to see whether
>
> to_date('01/01/1970', 'MM/DD/YYYY') + TIME_STAMP
>
> yields something more meaningful to you ...
>
> --
> Regards,
>
> Stephane Faroult
> Oriole Software
--
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--
Author: Stephane Faroult
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