PCM17 – the Pentaho Community Meeting 2017

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Hi All,

this Saturday, the #PCM17 takes place in Mainz, Germany. PCM17 is the Pentaho Community Meeting that takes place at different locations around the globe. As it happens “around the corner” this time, I will be there and I am so excited. This is the 10th time it happens and there are so many interesting talks. As there are two different “Tracks” – Business and Technical, I will have a hard time deciding where to go – I will mostly stick to the technical track though.

There are talks about the separation of business- and IT rules in ETL Jobs, “Serverless” PDI and Machine Learning, a topic I am specifically interested in.

And – hey – CERN is talking and if there is anybody in the world that generates a lot of data it needs to handle, it’s CERN.

IT-Novum, who is organizer of the event, will do extensive blogging, so I will just lean back and enjoy the show – nothing to expect in my blog.

Follow me on Twitter for comments, impressions and pictures.

Cheers

Andre

Counting NULL values in Oracle

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Howdy,
today I had the challenge to count null values in a orale table. At first I tried something like

SELECT
sum(field1 is null) null_counter
FROM
table

but this did not bring be very far.

also:

SELECT
sum(
case field1 
when null then 1
else 0
end
) null_counter
FROM
table

did not get me very far.

After some internet research I came across this neat little thingie:

SELECT
sum(
case nvl(field1,'null') 
when 'null' then 1 
else 0 
end
) null_counter
FROM
table

Oracle Date Territory

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Hi Folks,

I came across the problem that when using something like:

to_char(my_datefield,'D') as dow

to find out the date, this might behave differently on the pentaho production-server, the report designer and (if applicable) an underlying PDI transformation. When connecting to the Oracle-Server, you can click on “advanced” and set the locale to what you need – for example

ALTER SESSION SET NLS_TERRITORY = BELGIUM;

That way, your transformation/report will behave consistently across servers/environment.

 

Cheers

Andre