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First major fail on commenting on MOS: Me: "Doc ID XYZ is ambiguous and needs clarification about ..., does it mean P or Q; can you do X after applying the suggested workaround." Response: "You do the research, tell us what you find, and we might update the note".
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Here's an interesting little detail about "inlist iterators" and an undocumented (but potentially necessary) hint from a "real-world" problem a couple of years ago:https://jonathanlewis.wordpress.com/2018/11/15/num_index_keys/ …
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It's taken me over a month to get fit enough after a 9 month layoff, but I've finally managed to do a continuous 10Km on the erg, and just clipped in under 45 minutes. Target for the end of the year: 42 minutes. Over-optimistic target: 41 minutes
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2/2 Obviously you can run into parsing problems if you do the wrong kinds of query and have an unsuitable partitioning strategy but I'm not counting that. The question is simply about whether you could load the dictionary cache with more metadata than it can handle.
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1/2 An interesting question appeared in the comments of an old post about the 2^20-1 limit on segments to a partitioned object: https://jonathanlewis.wordpress.com/2016/02/26/partition-limit/ … Has anyone seen a system where the pure volume of segment information from partitioned tables has produced a performance issue.
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Just got my "before you go" email from Oracle Openworld Europe next week at Excel: https://www.oracle.com/uk/openworld/ See you there,
@MDWidlake (if you can tear yourself away from the cat).Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Jonathan Lewis proslijedio/la je Tweet
Have you got some Oracle technical knowledge or story you think others would like to hear? We're looking for great presentations for the
@UKOUG Midlands Tech Summit in Birmingham on 29th April https://ukoug.org/page/techsummituno …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
#POUG Workshop 2020 ( https://poug.org/en/edycja/poug-workshop/ … ) is only 7 weeks away, and I've just updated my "Public Appearances" page with the abstract for my session on Execution Plans:https://jonathanlewis.wordpress.com/public-appearances/ …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
If you think maxqueryid from v$undostat will help you identify what's causing a problem with undo, you need to think again:https://jonathanlewis.wordpress.com/2020/02/04/maxquerylen/ …
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Here's a golden oldie that can be adapted to find (recent) execution plans for all sorts of conditions:https://jonathanlewis.wordpress.com/2011/05/11/dbms_xplan-reprise/ …
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Jonathan Lewis proslijedio/la je Tweet
You use referential integrity constraints in a relational database? What a noob!
On a serious note, I guess a lot depends on how they are being used. If you are using them in an early phase of an ETL process, I guess you are far less likely to see this.Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Nice to hear that Oracle PMs et. al. are talking about 20c - just as I find my first 19c bug fixed in 21.1 !
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Jonathan Lewis proslijedio/la je Tweet
“If you write
#SQL that is technically incorrect it’s not Oracle’s fault if sometimes the SQL completes without an error" -@JLOracle He shows how queries with "obviously wrong" to_number ( 'X' ) can still return no rows instead of an exceptionhttps://jonathanlewis.wordpress.com/2020/01/22/philosophy-23/ …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Jonathan Lewis proslijedio/la je Tweet
Oh, I also changed the url from http://blog.tanelpoder.com to just http://tanelpoder.com so update your bookmarks! (the old URL will still work too, but will do a HTTP 301 redirect to the new one)
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On the downside, the vinegar seems to have dissolved the glue that stuck the contact plate to the battery cover - so it was a bad idea to drop the cover while changing the batteries. Next step - a very small drop of super glue.
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Success. All the white gunk gone, some pitting on the pair of electrodes that were really badly gunked up, no signs of damage on the other pair. Camera now working again (after addition of new batteries).
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Kitchen Science: A couple of A4 batteries were left (passive voice - weasel writing) in my camera a couple of years ago, so massive corrosion on contacts, camera non functioning. Relevant bit now sitting in little bowl of (white wine) vinegar fizzing away - looks promising.
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Jonathan Lewis proslijedio/la je Tweet
#Oracle "DROP COLUMN" bug in 18c and 19c : See note by@JLOraclehttps://jonathanlewis.wordpress.com/2020/01/14/drop-column-bug/ …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Jonathan Lewis proslijedio/la je Tweet
#Oracle "GROUP BY" elimination bug . Note by@JLOraclehttps://jonathanlewis.wordpress.com/2020/01/17/group-by-elimination/ …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
I love http://www.freecycle.org - I had a single bed with mattress to dispose of: posted it to freecycle and it was gone in 2 hours (to someone who really needed it).
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