One of the biggest things that we couldn’t do in the previous versions of the oracle database was to use the back arrow button-to reexecute the old commands, without typing them. Of course, a workarouns is possible in the form of rlwrap but it’s not comparable to a natively available feature in the SQL*PLUS. Well, until now because now, we have HISTORY option available in 12.2 SQL*PLUS. Let’s take a look.
Ten years ago after a lecture given at the Technische Universität Kaiserslautern i started this blog with this posting
(about the lecture). And you can see: the link does not work anymore but the screenshot still remains after such a long time.
After this post, i owned a blog, with one entry and noticed that finding topics to write about is not really easy.
In August 2017 i started to write about Oracle products like (more...)
Tim Hall of ORACLE-BASE spoke for a lot of people when he (yet again) wrote about Oracle Documentation links changing all the time
. There exists a method for a more permanent link to Oracle Documentation, but it can be a hazzle to create such a permalink involving manually searching HTML code of the doc source (see my comment
to Tim's blog post.)
Then I thought that this manual creation of permalink probably could be (more...)
As always, Tim Hall was the first to find it out :=) . So if you haven’t done already-update your VirtualBox setup to VirtualBox 5.0.16 version. I have done the update on my laptop (this one, Win 7 Professional) and desktop(Win 7 Professional) with no issues.
Every positive integer (except the number 1) can be represented in exactly one way apart from rearrangement as a product of one or more primes, see for example Wolfram MathWorld or Wikipedia.
Here is the SQL-Version, we compute this for all integers up to 100
with bound as
select 100 as bound from dual
n_until_bound as (
select level+1 n
connect by level <= (select bound.bound from bound)
Today is friday and I like the twitter-hashtag #FibonacciFriday,
so I tweeted
Don’t be afraid of having a look at the wikipedia-site, the math is not complicated at all ( you don’t need more than adding natural numbers smaller than hundred ), nevertheless the theorem is nice from a (more...)
In this post, we’re going to perform a push button refresh of an Oracle Database, Application Express (APEX) installation, and Tomcat webserver.
“But Oracle Alchemist,” you’re probably thinking, “we know about that. You’ve told us about how Delphix can provision and refresh data.” And yes, you’d be right. But I wasn’t done yet.
We’re going to perform a refresh of an Oracle Database, APEX installation, and Tomcat running in Amazon Web Services, replicated from (more...)
Yeah, it’s indeed true and official. So if you still haven’t started reading and learning Multitenant architecture introduced in 188.8.131.52 and enhanced in 184.108.40.206, it’s high time that you start doing it. Not because that it’s new but because the old architecture you are familiar with, it’s officially on the verge of extinction.
Only two things are really certain: network latency over long distances, and the fact that humanity will soon rapidly degenerate into undead brain-eaters.
When that day comes, when the dead are crowding at your door and the windows are busted out and ripped up rotted arms are clawing at the inside of your home, I know what you’ll be thinking: is my database protected?
Don’t worry, my friends. The Oracle Alchemist has you covered. We (more...)
Last week I attended Oracle OpenWorld 2014, and it was an outstanding event filled with great people, awesome sessions, and a few outstanding notable experiences.
Personally I thought the messaging behind the conference itself wasn’t as amazing and upbeat as OpenWorld 2013, but that’s almost to be expected. Last year there was a ton of buzz around the introduction of Oracle 12c, Big Data was a buzzword that people were totally excited (more...)
After upgrading Windows 8 to Windows 8.1 my wireshark
freezed on every startup without showing up the main window.
The only workaround was to deinstall wireshark including wincap and installing it again. But after the nex reboot, it freezed again.
After searching around i found the following fix, with cured this problem:
inside the registry you have to change the DWORD start in
from 0 or 1 to 2. After that wireshark will start properly even after reboots....
Today’s the first day of school in my city, and the plethora of “OMG 1st day of school!” posts of Facebook and my own kids heading back in to slog through another year of fundamentals got me thinking about education. My own kids (12/daughter and 10/son) came home and went swimming since it was about 104 degrees today…the hottest day of the summer, as it were.
Anyways, after that activity my son decided to (more...)
After upgrading to FritzOS 6.05
CLIP stopped working with my analog phone.
The settings looked quite ok: (Telefonie -> Telefoniegeräte -> bearbeiten -> Merkmale des Telefoniegeräts)
This basic feature was certainly not shipped without testing. So this has to be a problem of data/parameter migration.
After unchecking CLIP, doing a reboot and ba checking the box again CLIP worked like before...