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Chris Antognini

@chris.antognini.ch
171 followers 59 following 122 posts

Striving for Optimal Performance antognini.ch

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Chris Antognini @handle.invalid · 28/07/2026
Don't forget the 21c...
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Chris Antognini @handle.invalid · 02/02/2026
This is an interesting case of censorship. The two images show the front covers of the same book. One was printed in Switzerland and the other by Amazon. I suppose Donald's ego is just too fragile.
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Chris Antognini @handle.invalid · 03/01/2026
In 2025 the energy balance of our PV system (10 kWp) improved thanks to better weather (+780 kW) and some adjustments of pool and EV consumption. The self-consumption of 56% is good and could be taken to 60% with further optimisation. Unfortunately, I wasn't able to acquire a V2H wallbox... WIP.
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Chris Antognini @handle.invalid · 16/12/2025
Maybe, not. In fact, according to NEWS21, the issue was resolved.
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Chris Antognini @handle.invalid · 16/12/2025
I just noticed that "Previous Favorites" are now available in my MOS account. That said, the list doesn't contain everything I was expecting...
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Chris Antognini @handle.invalid · 21/07/2025
The Demon-Haunted World, Carl Sagan, 1996
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Chris Antognini @handle.invalid · 28/05/2025
I'm looking for a working example of the LLS Clause in #OracleDatabase, but I'm unable to find it. Also the one provided in the doc is wrong (doesn't work). When no offset/length is specified, it works as expected. With offset/length, I always get a KUP-04001 error referencing an invalid file name.
Excerpt of "Oracle Database Utilities Guide" describing how data is processed when the LLS clause is used.
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Chris Antognini @handle.invalid · 16/05/2025
#QlikConnect appreciation event took place in Disney's Animal Kingdom. I'm not a big fan of such parks, but it was fun. Avatar Flight is really impressive! Thanks to #Qlik and diamond sponsors #AWS and #Accenture.
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Chris Antognini @handle.invalid · 15/05/2025
First time I attended a conference using the silent-disco approach. E.g. on the photo, there are three "rooms" with parallel sessions. I must say it works really well. #QlikConnect
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Chris Antognini @handle.invalid · 15/05/2025
#QlikConnect day 2 - general session with guest speaker Katie Ledecky
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Chris Antognini @handle.invalid · 14/05/2025
#QlikConnect day 1 - general session
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Chris Antognini @handle.invalid · 28/04/2025
Hey #Oracle, can you please remove from the 23 documentation references to Java classes (e.g. oracle.sql.STRUCT/OPAQUE/ARRAY/REF) that were deprecated more than one decade ago? docs.oracle.com/en/database/...
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Chris Antognini @handle.invalid · 17/04/2025
Somehow, I find it strange to see my name on a conference agenda... I can't even remember the last time it happened (except for #tvdpdays #rip). Anyway, I'm happy to talk about what we developed in the last 5 years. #ecaas #qlik #qlikconnect25
Qlik Connect 2025 - Highly
automated and customizable
data migration to Qlik Talend
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Chris Antognini @handle.invalid · 27/03/2025
On the customer's database, I have limited access. Hence, I only took a systemstate (level 266). On my notebook, I used perf to confirm that what I see seems equivalent to the customer's database. It seems that the issue is caused by kdlwiOpen1/kdlwiClose1. Next, I will try the fix for bug 35999726.
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Chris Antognini @handle.invalid · 26/03/2025
To be clear, the contention is due to the 8 parallel processes themselves; not to other concurrent operations. The following images illustrate what I observe on my notebook when moving a small 1-million-row table...
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Chris Antognini @handle.invalid · 30/01/2025
It might be just me, but when in #OracleDatabase you are hitting an ORA-22804, the available technique to workaround it is well hidden in the highlighted sentence (extracted from the the Object-Relational Developer's Guide). Why not providing an example?
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Chris Antognini @handle.invalid · 27/01/2025
Don't ask me why, but after watching that beautiful movie dozens of times, I realised only tonight that March 22 was a Monday, not a Saturday.
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Chris Antognini @handle.invalid · 01/01/2025
In 2024, the energy balance of our PV system (10 kWp) achieved my expectations: it produced more than what the house, pool and EV consumed; the self-consumption reached 50%. Goal for 2025 is to take advantage of our EV (Skoda Enyaq) in a vehicle-to-home mode to drastically increase self-consumption.
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Chris Antognini @handle.invalid · 21/11/2024
Please, #snowflake, can you provide better error messages? I don't see how something like that can help when the query has many subqueries...
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Chris Antognini @handle.invalid · 17/11/2024
My first DOAG was also in 2004... Time flies!
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