The KScope Charitable Dinner Raffle

Do you want a chance for a dinner with me at KScope13 in New Orleans chatting about SQL? And at the same time get a warm charitable feeling inside helping the volunteers rebuilding New Orleans?

If yes, then read on :-) ...



In January ODTUG started a little competition where you could win a dinner for two at KScope13 in New Orleans by telling about your favorite experience from KScope. I entered a little story from KScope12 where I presented on analytic functions.

Surprise, surprise - I won \o/ ... But as I haven't spotted any other entries in the competition, I (more...)

Recursive subquery graph traversing

In December a user Silpa asked a question on AskTom on "Bi-directional hierarchical query," which inspired me to fool around with recursive subquery factoring (available from version 11.2) giving Silpa a solution which he seemed to find useful. Since then I've fooled around a little more with it, particularly concerning cycles in the graph data.

Silpa gave a table like this for testing:

create table network_table (
origin number
, destination number
)
/

And some data as well:

insert into network_table values (11, 12)
/
insert into network_table values (12, 13)
/
insert into network_table values (14, 11)
(more...)

I’m evaluated…

UKOUG 2012 evaluations have arrived - I think I did OK :-).


On a scale from 1 to 6 my scores were:

  • Topic: 5.5
  • Content: 5.5
  • Presentation skills: 4.83
  • Quality of slides: 5
  • Value of presentation: 5.67
I'm quite happy with those scores - particularly that the 6 people that filled out evaluation schemas thought they got a lot of value from the presentation. The skills score is fair, I had expected a bit less as I know I am not world class presenter - but I hope practice makes better :-)

The comments also makes (more...)

Formspider comes to Denmark

For the Danish Oracle User Group (DOUG) I'll be hosting a Formspider event in Copenhagen January 21st 2013. I look forward to seeing Yalim Gerger demonstrate this alternative to APEX or ADF or Forms.

The event will take place in my company's classroom at Banestrøget 17, 2. th., 2630 Tåstrup, which is 2 minutes walk from Høje Tåstrup train station.

Program for the afternoon:
  • 13:30 - 14:30 Introducing Formspider, the Web 2.0 framework for PL/SQL developers
Yalim Gerger, Founder&CEO of Formspider talks about the vision and the benefits of the Formspider Framework.

Thank you, UKOUG 2012

So, I'm about to leave UKOUG 2012. I had a good time and learned quite a bit from the smart people gathered in Birmingham ;-)

Thank you to those attending my presentation on analytic functions - I hope you learned something from it. If you need to take a closer look, both presentation and scripts can be found here.

Birmingham Airport next stop...

Analytic FIFO multiplied – part 3

This is part 3 of a three part posting on analytic FIFO picking of multiple orders. Part 3 shows how to combine the FIFO developed in part 1 with the analytics used for the better route calculation in an earlier blog post.



We use the same tables and same data as part 1, so read part 1 for the setup.

When combining the FIFO for multiple orders with the route calculation, we get this nice piece of sql:


with orderlines as (
select o.ordno
, o.item
, o.qty
, nvl(sum(o.qty) over (
partition by o. (more...)

Analytic FIFO multiplied – part 2

This is part 2 of a three part posting on analytic FIFO picking of multiple orders. Part 2 shows an alternative way of doing the same thing as part 1 did - but this time using recursive subquery factoring in Oracle v. 11.2.



We use the same tables and same data as part 1, so read part 1 for the setup.

And just to recap - here's the picking list developed in part 1:

with orderlines as (
select o.ordno
, o.item
, o.qty
, nvl(sum(o.qty) over (
partition by o.item
order by o. (more...)

Analytic FIFO multiplied – part 1

I have blogged before about Analytic FIFO picking as well as talked about it at KScope12 and will do again at UKOUG2012.

A few days ago Monty Latiolais, the president of ODTUG, had a need to do this - not just for one order which he already had developed the technique for, but for multiple orders, where the FIFO picking for the second order should not consider the inventory that was already allocated to the first order, and so on.

So here is a three-part demo of how to do this.


First we setup the same inventory as (more...)

Ready for UKOUG2012

I think I am about ready for UKOUG conference 2012. Hope I haven't forgotten something :-)

  • Train ticket to airport - check
  • Plane ticket to get to Birmingham - check
  • Hotel reservation - check
  • UKOUG2012 registration - check
  • Planned my agenda - check
  • Chairing a session - check
  • Uploaded presentation for my session - check
  • Discovered where to get Oracle beer near ICC - check
Yup - checklist done :-)

If you're interested, come to my session Wednesday Dec. 5th at 12:10 and see if I can speak fast enough to go though 130 slides in an hour showing these (more...)