Right smack in the middle of the busiest time of the year for the business (this time of year we sell fireworks for New Year) I have opportunity to reflect a bit on the upcoming year and what 2016 will bring of challenges and joys.
Of course things will happen in the Oracle world that'll indirectly influence my year, as always. Not always possible to predict here near the start of the year, but most (more...)
I got a question recently from Morten Braten
whether my FIFO analytic techniques could be helpful for calculating the value of fuel consumption for cargo vessels. It turned out not to be quite
the same, but similar. Analytic functions definitely could help.
I'll show how in two parts. First this blog post will calculate the fuel consumption in quantity, then part two will calculate the value by FIFO.
So let's setup a slightly simplified version (more...)
The last time I went to Oracle OpenWorld, I hadn't started blogging yet. Now I think it fair to call myself "blogger", even though I don't blog very regularly.
So I will try to attend the Bloggers Meetup:http://www.pythian.com/blog/oracle-openworld-2015-bloggers-meetup/https://community.oracle.com/events/1099
I have heard a lot of good about it, so I am looking forward to see for myself ;-) Viewing who has RSVP'ed at either link, I know I spot some (more...)
In 2 days time I fly off to San Francisco for Oracle OpenWorld 2015
. Last time I went to OpenWorld was 2008, so I'm looking forward to a re-visit and see how much bigger it has become :-)
Like everybody else I've been making a schedule for the week. Of course things will happen to change the schedule along the way, but some things I definitely have on the must-do list...
The Oracle Database Developer Choice Awards
voting is now closed.
I thank all of you who voted for me. It was an honor and privilege just to be nominated, and then even getting votes from somebody, well that feels good :-)
My final ranking is middling, but the competitors were all worthy and good people, so I have no complaints :-)
CATEGORY NAME FINAL_RANK POSITIVE_VOTES
--------- ----------------- ---------- --------------
apex Morten Braten 1 186
The Oracle Database Developer Choice Awards
voting will go on until October 15th 2015. If you haven't already, you should go vote now
Here is the present status of how many votes have been submitted per category, including how many votes the category has increased with since "approximately yesterday" (since last time I downloaded the data, which I plan to do approximately daily ;-), and including how many votes the category has increased with since (more...)
In Part 1
I demonstrated how to "scrape" data from the live webpages with the votes of the Oracle Database Developer Choice Awards. Unfortunately those webpages are not ideal for scraping, so I promised a workaround. Here I do a semi-manual scraping af data by using a browser to retrieve the actual HTML, save it to a file, and then let the code parse out the data from the file.
In the live version, the (more...)
You know about the Oracle Database Developer Choice Awards
voting, right? If not, then go vote now
, please, and then come back and read on :-)
I want to be able to query the voting status, who is ranked what in each category and so on. But I don't want to type in votes in a table, especially not when they change all the time. Instead I'd like to query the live data in (more...)
Oracle is celebrating the Oracle Community by having us developers nominate and vote forOracle Database Developer Choice Awards
to our fellow developers in five database development technologies:
SQL, PL/SQL, ORDS, APEX, Db-Design
The nomination period is over and it has been possible to vote since September 15th. Voting is open until October 15th and winners will be announced during Oracle OpenWorld 2015.
The nominees are all active in the Oracle Community helping others as (more...)
I've been playing around with MATCH_RECOGNIZE - the data pattern matching extension to SELECT that was introduced in version 12.
Most examples I've seen have used the default AFTER MATCH SKIP PAST LAST ROW as most often the logic dictates, that when we have found a match in a group of rows, we want to search for further matches after
those rows to avoid unwanted "double" matches.
But can there be uses where we want (more...)
Supposing you've got data as a text string with "row" and "column" delimiters and you would like to parse out those columns and rows. The external table syntax would actually be great for this, but that requires writing the text out to a file first, and then you can import it back again as columns and rows.
There are various other alternatives using SQL and/or XML manipulations, but one method that I don't see much (more...)
Just a brief summary of the status of Escope so far - I know it's very very early and too early to even tell whether it'll become real or not, but anyway ... ;-)
- For those who don't know yet, we're trying to see if it is possible to create a conference in Europe like the Kscope conference by ODTUG. See my early thoughts here:
- We're gathering feedback from as many European (more...)
In my last post
, I wrote about a dream of a European version of ODTUG Kscope
conference - working title "Escope." ;-) We're trying to determine whether it would be feasible to create such a conference - if you haven't already, go and fill out the survey
and help us find out if there's basis for the dream. And send the survey link to you colleagues and friends and network - the more (more...)
As most people likely to read this blog will know, I am a great fan of the ODTUG Kscope
yearly conference for Oracle developers. In my opinion it is one of the absolute best places for awesome content, presenters, attendees and networking - all wrapped in one high quality package that's fun too.
Some Dutch developers (Erik van Roon
, Gert Poel
and more) and I had a little twitter discussion some time ago. (more...)
A recent question on the Oracle-L mailing list was about generating dates in a given period. If you had a string like 'MWF', all Mondays, Wednesdays and Fridays between the from- and to-dates should be generated.
That reminded me of a quiz on plsqlchallenge.com
I did on using DBMS_SCHEDULER.EVALUATE_CALENDAR_STRING. I had created a table function to test calendar expressions - that might be useful for something similar to what was asked on the (more...)
It's Christmas time... It's a time for giving... It's a time for warm-hearted feelings...
But there are people battling for their lives against cancer, who may not have much energy left to enjoy the holidays. Almost everybody has family or friends whose life has been impacted by cancer. Let us all reach out however we can, help wherever we can, and let good thoughts go out to the victims.
All cancer is terrible - but (more...)
Som et alternativ til kaffemøderne i den danske Oracle brugergruppe DOUG forsøger vi efter idé fra min kollega Majken Sander
og undertegnede et nyt koncept uden præsentationer og foredragsholder, men i stedet lade deltagerne brainstorme og sparre med hinanden omkring at knuse et bestemt problem.
køres en aldrende XAL applikation med data i Oracle. Her skal re-nummereres pseudokey for 600 millioner rows pga. applikationen ikke kan håndtere integers over 32 bit. Det (more...)
Via Steven Feuerstein
I was asked to try and give advice concerning fastest way to parse CSV data in PL/SQL. The case was that they had a different database that could be setup to deliver data as a webservice serving either CSV, XML or JSON, and they wished to let their APEX application use PL/SQL to retrieve data from that other database via such webservices. They were not yet on 184.108.40.206.0 (more...)
Previously I've demonstrated how to use function XMLTABLE to query Google maps routing directions
. Now Oracle version 220.127.116.11.0 has function JSON_TABLE to do similar querying on JSON data rather than XML data. So let's try that out and spot some differences...
For this test we'll use the Google maps geocoding rather than routing directions and try to geocode the address of Oracle headquarters. If we call the Google api with instructions (more...)
Inspired by Maria Colgans quest for In-Memory bumper sticker slogans
for OOW14, I couldn't resist a little fun. Musical readers should stop reading now :-)
Sung to the tune of the old Nat King Cole classic
Like the speed of light my query go
Column aggregates just happen so
Has data been more...
Is forever more
Row based access, it's a dinosaur