Comments on: What is the lowest and highest possible date in Oracle? http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html Oracle Certified Master Fri, 05 Sep 2008 16:23:23 +0000 http://wordpress.org/?v=2.0.5 by: Laurent Schneider http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6084 Sat, 08 Mar 2008 07:08:51 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6084 yes, I will have a look. thank you yes, I will have a look. thank you

]]> by: Max http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6083 Fri, 07 Mar 2008 23:24:39 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6083 Did you receive the export file? Did you receive the export file?

]]> by: Laurent Schneider http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6019 Mon, 25 Feb 2008 13:48:44 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6019 ok, you can mail it to me at laurentschneider<b>@</b>yahoo.com ok, you can mail it to me at laurentschneider@yahoo.com

]]> by: Max http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6017 Mon, 25 Feb 2008 06:51:16 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6017 Do you want the export? Do you want the export?

]]> by: Laurent Schneider http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6012 Sun, 24 Feb 2008 14:38:37 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6012 Max, I have notice this behavior and cannot think of another method yet. Well, if you have some values, you maybe can use exp, can you? Weird dates by the way ;) Max,
I have notice this behavior and cannot think of another method yet. Well, if you have some values, you maybe can use exp, can you?

Weird dates by the way ;)

]]> by: Max http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6011 Sun, 24 Feb 2008 08:57:42 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-6011 Can you imagine any way how to insert a date value into a date column which is dumped as: TYP=12 LEN=7: 0,0,44,132,93,64,203? We've found some of those values within a few rows of some table columns but using dbms_stats.convert_raw_value( '00002C845D40CB', dt ) didn't reproduce this (resulting dump: Typ=12 Len=7: 255,100,44,132,93,64,203) ... Can you imagine any way how to insert a date value into a date column which is dumped as: TYP=12 LEN=7: 0,0,44,132,93,64,203?

We’ve found some of those values within a few rows of some table columns but using dbms_stats.convert_raw_value( ‘00002C845D40CB’, dt ) didn’t reproduce this (resulting dump: Typ=12 Len=7: 255,100,44,132,93,64,203) …

]]> by: Brian Tkatch http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-5863 Mon, 28 Jan 2008 14:23:15 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-5863 "Interesting experiment, but it may detract from Oracle sales to archaelogical firms. Some fundamentalist Christian organizations may be encouraged to buy Oracle, however. :)" Heathen! It's nearly a thousand years too early! Sheesh. :) “Interesting experiment, but it may detract from Oracle sales to archaelogical firms. Some fundamentalist Christian organizations may be encouraged to buy Oracle, however. :) ”

Heathen! It’s nearly a thousand years too early! Sheesh.

:)

]]> by: Chen Shapira http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-5854 Sat, 26 Jan 2008 01:55:48 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-5854 I will still be working when time_t wraps around. It reminded me of a nice story out of "Expert C programming": ---- The on-line manual pages of the original tunefs, like all Berkeley commands, ended with a "Bugs" section. In this case, it read: Bugs: This program should work on mounted and active file systems, but it doesn't. Because the superblock is not kept in the buffer cache, the program will only take effect if it is run on dismounted file systems; if run on the root file system, the system must be rebooted. You can tune a file system, but you can't tune a fish. Even better, the word-processor source had a comment in it, threatening anyone who removed that last phrase! It said: Take this out and a UNIX Demon will dog your steps from now until the time_t's wrap around. When Sun, along with the rest of the world, changed to SVr4 UNIX, we lost this gem. The SVr4 manpages don't have a "Bugs" section—they renamed it "Notes" (does that fool anyone?). The "tuna fish" phrase disappeared, and the guilty party is probably being dogged by a UNIX demon to this day. Preferably lpd. --- Later in the chapter there is an exercise to the reader to find out when time_t wraps around. I will still be working when time_t wraps around. It reminded me of a nice story out of “Expert C programming”:

—-
The on-line manual pages of the original tunefs,
like all Berkeley commands, ended with a “Bugs” section. In this case, it read:

Bugs:
This program should work on mounted and active file systems, but it
doesn’t. Because the superblock is not kept in the buffer cache, the
program will only take effect if it is run on dismounted file systems; if
run on the root file system, the system must be rebooted.
You can tune a file system, but you can’t tune a fish.

Even better, the word-processor source had a comment in it, threatening anyone who removed that last phrase! It said:

Take this out and a UNIX Demon will dog your steps from now until the
time_t’s wrap around.

When Sun, along with the rest of the world, changed to SVr4 UNIX, we lost this gem. The SVr4 manpages don’t have a “Bugs” section—they renamed it “Notes” (does that fool anyone?). The “tuna fish” phrase disappeared, and the guilty party is probably being dogged by a UNIX demon to this day. Preferably lpd.

—

Later in the chapter there is an exercise to the reader to find out when time_t wraps around.

]]> by: Ontario Emperor http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-5853 Fri, 25 Jan 2008 22:31:15 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-5853 Interesting experiment, but it may detract from Oracle sales to archaelogical firms. Some fundamentalist Christian organizations may be encouraged to buy Oracle, however. :) Interesting experiment, but it may detract from Oracle sales to archaelogical firms. Some fundamentalist Christian organizations may be encouraged to buy Oracle, however. :)

]]> by: Laurent Schneider http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-5850 Fri, 25 Jan 2008 16:40:42 +0000 http://laurentschneider.com/wordpress/2008/01/what-is-the-lowest-and-highest-possible-date-in-oracle.html#comment-5850 by the way, unless they change regulation and in case I survive the terminators, I will not have to face bug 2038 even! <code>$ perl -e "use POSIX; print (ctime (2**31-1))" Tue Jan 19 04:14:07 2038 $ perl -e "use POSIX; print (ctime (2**31))" Fri Dec 13 21:45:52 1901 </code> by the way, unless they change regulation and in case I survive the terminators, I will not have to face bug 2038 even!

$ perl -e "use POSIX; print (ctime (2**31-1))"
Tue Jan 19 04:14:07 2038
$ perl -e "use POSIX; print (ctime (2**31))"
Fri Dec 13 21:45:52 1901

]]>