Comments on: Give Me The Current Date Please http://awads.net/wp/2008/04/17/give-me-the-current-date-please/ News, views, tips and tricks on Oracle and other fun stuff Mon, 08 Sep 2008 09:25:50 +0000 http://wordpress.org/?v=2.5 By: Karl Reitschuster http://awads.net/wp/2008/04/17/give-me-the-current-date-please/#comment-52082 Karl Reitschuster Mon, 21 Apr 2008 05:26:20 +0000 http://awads.net/wp/?p=722#comment-52082 The should have called it CLIENT_DATE it's the date where the Client operates :-) timestamps has another disadvanatge if you import (imp) data on a table with a timestamp, it's not loded bulk but row per row. that's what i experienced on 10.2; if a sysdate should be used or not could be depend on businesss rules. For example using ebay a sysdate should used to store your transaction to be able to compare it against other competitiors cheers Karl The should have called it CLIENT_DATE it’s the date where the Client operates :-)

timestamps has another disadvanatge if you import (imp) data on a table with a timestamp, it’s not loded bulk but row per row. that’s what i experienced on 10.2;

if a sysdate should be used or not could be depend on businesss rules. For example using ebay a sysdate should used to store your transaction to be able to compare it against other competitiors

cheers
Karl

]]> By: Laurent Schneider http://awads.net/wp/2008/04/17/give-me-the-current-date-please/#comment-52075 Laurent Schneider Fri, 18 Apr 2008 06:19:29 +0000 http://awads.net/wp/?p=722#comment-52075 > then you have no daylight saving issues for instance some issues are related to Oracle and to the goverments changing rules over and over. Did you a know an island with about 500 people and 1000 birds did introduce a half-an-hour summer offset that produced bugs in 10gR2 :) select timestamp '2007-10-27 15:00:00 +00:00' at time zone 'Australia/LHI' from dual; ORA-01878: specified field not found in datetime or interval But yes, using date instead of timestamp is probably not the best approach. Still a lot of function do not work with timestamp, like LAST_DAY, ADD_MONTHS and TRUNC > then you have no daylight saving issues for instance
some issues are related to Oracle and to the goverments changing rules over and over. Did you a know an island with about 500 people and 1000 birds did introduce a half-an-hour summer offset that produced bugs in 10gR2 :)

select timestamp ‘2007-10-27 15:00:00 +00:00′ at time zone ‘Australia/LHI’ from dual;
ORA-01878: specified field not found in datetime or interval

But yes, using date instead of timestamp is probably not the best approach. Still a lot of function do not work with timestamp, like LAST_DAY, ADD_MONTHS and TRUNC

]]> By: Chris Dawes http://awads.net/wp/2008/04/17/give-me-the-current-date-please/#comment-52074 Chris Dawes Thu, 17 Apr 2008 23:33:17 +0000 http://awads.net/wp/?p=722#comment-52074 why do people still store dates in anything but GMT... it's beyond my imagination... Local dates cause 'big issues' when the apps are taken overseas!! Welcome to 2008 people! Local time and date - great for display, not for storage!!! (then you have no daylight saving issues for instance!!) why do people still store dates in anything but GMT… it’s beyond my imagination…

Local dates cause ‘big issues’ when the apps are taken overseas!! Welcome to 2008 people! Local time and date - great for display, not for storage!!!

(then you have no daylight saving issues for instance!!)

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