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Mark Hoxey | Musings on Oracle Database Development | markhoxey.wordpress.com Reviews
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Musings on Oracle Database Development
June | 2015 | Mark Hoxey
https://markhoxey.wordpress.com/2015/06
Musings on Oracle Database Development. Skip to primary content. Skip to secondary content. Monthly Archives: June 2015. Storing Active Session History. June 9, 2015. If you’ve ever had to diagnose a production problem in Oracle you will know the huge benefit that Active Session History. Commonly known as ASH) gives you. In summary, ASH provides you with a one second sampling of all active sessions in the database. As noted previously. BEGIN SELECT MAX(sample id) INTO l max sample id FROM ash hist - add ...
ORA-00001 unique key violated with MERGE | Mark Hoxey
https://markhoxey.wordpress.com/2015/04/15/ora-00001-unique-key-violated-with-merge
Musings on Oracle Database Development. Skip to primary content. ORA-00001 unique key violated with MERGE. April 15, 2015. I arrived at work one morning to find a system generated email telling me that a user session had thrown a unique constraint violation exception. Curious given the code had been running in production for 6 months…. Starting with a simple two column table with 10 rows (running under Oracle 12.1.0.2):. The first session immediately reports:. While the second session, attempting to obta...
Flashback Data Archive | Mark Hoxey
https://markhoxey.wordpress.com/2015/07/21/flashback-data-archive
Musings on Oracle Database Development. Skip to primary content. July 21, 2015. Presentation at the 2014 AusOUG conference. I decided to look into using Flashback Data Archive (FDA) instead… and I’m so glad I did! Flashback Data Archive essentially involves defining a retention policy, e.g. something like “1 year”, and associating tables with that policy. Oracle then handles the rest. Let’s take a look at how easy it is to set this up. We will:. Define a new tablespace. Now that we’ve got our FDA i...
Mark Hoxey | Musings on Oracle Database Development | Page 2
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Musings on Oracle Database Development. Skip to primary content. Skip to secondary content. Newer posts →. March 15, 2016. In the last post. We looked at asynchronous processing using a queue and a callback routine. Event-based processing is very powerful and flexible. Oracle’s Advanced Queues provide many features that are useful in setting up event-based processing. This post will look at muti-subscriber queues. We also have routines to add and remove queue subscribers exposed in the package spec:.
Avoiding ORA-04068: existing state of packages has been discarded | Mark Hoxey
https://markhoxey.wordpress.com/2013/09/17/avoiding-ora-04068-existing-state-of-packages-has-been-discarded
Musings on Oracle Database Development. Skip to primary content. Avoiding ORA-04068: existing state of packages has been discarded. September 17, 2013. If you’re trying to run your database as close to 24×7 as possible, with no downtime for updates, then one thing you will need to avoid is the following error:. ORA-04068: existing state of packages has been discarded. Before we get into strategies to avoid package state, lets first show ORA-04068 in action using an 11.2 database. In session 1 we&...SQL1 ...
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NUMBER data type…what harm can it do ? | Learning is not a spectator sport
https://connormcdonald.wordpress.com/2015/04/20/number-data-type-what-harm-can-it-do
Learning is not a spectator sport. Connor McDonald's Oracle blog. NUMBER data type…what harm can it do? NUMBER data type…what harm can it do? April 20, 2015. April 20, 2015. There’s a somewhat sour discussion going on based attached to the video at https:/ www.youtube.com/watch? Let’s start with a simple comparison between two dates. In this case, I’ve just used times, because it still serves to demonstrate the anomaly. SQL set serverout on SQL declare 2 x number;. 3 begin 4 SELECT (TO DATE('14:03:15','h...
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Customer service, operations and self-service specialist. Also, arts fan. Sully The movie Marriott ruined. Sully The movie Marriott ruined. Why product placement is fine, but product bombardment is not. Sep 14, 2016. It’s ok to be a dropout. It’s ok to be a dropout. A letter to myself at sixteen. Sep 13, 2016. Customer service lessons from an airport delay. Customer service lessons from an airport delay. Jun 18, 2016.
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Mark Hoxey | Musings on Oracle Database Development
Musings on Oracle Database Development. Skip to primary content. Skip to secondary content. Database Views: the good, the bad and the ugly. September 5, 2017. Views are good as they can be used to hide complexity. Views are bad as they can hide complexity. It’s when views are used for the first point above without consideration of the second point that things can turn ugly. Here’s recently encountered example…. SELECT job name INTO l result FROM user scheduler running jobs where session id = l sid;.
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In A Good Light
In A Good Light. Mark Hoy, Photography : www.inaGoodLight.com. Tuesday, 2 February 2010. Gigs in Worcester - February 2010. 15:34 Posted by Mark Hoy. Gigs in Worcester - February 2010. Worcester Rock City Night @ the Marrs Bar:. Tallulah Fix, Torn, Enigma Theory, Evolution of Man £3. Get The Pluck UP! Pig n Drum: Dissidence,. Deacon Birch Evolution of Man. Monday, 21 December 2009. Gigs in Worcester - January 2010. 15:20 Posted by Mark Hoy. Gigs in Worcester - January 2010. Thursday, 17 December 2009.
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