Oracle rowcache fastgets
This blogpost is about the Oracle database row or dictionary cache. This is a separate cache that caches database metadata, like database object properties or user properties. There is surprising...
View ArticleOracle multi-tenant and library cache isolation
This post is the result of a question that I got after presenting a session about Oracle database mutexes organised by ITOUG, as a response to the conference cancellations because of COVID-19. Thank...
View ArticleOracle library cache cursor child generation
This post is about library cache SQL cursors, and how these are managed by the database instance.read more
View ArticleWhat’s new with Oracle database 19.9 versus 19.8
This blogpost takes a look at the technical differences between Oracle database 19 RU 8 (july 2020) and RU 9 (october 2020). This gives technical specialists an idea of the differences, and gives them...
View ArticleWhat’s new with Oracle database 18.11 versus 18.12
This blogpost takes a look at the technical differences between Oracle database 18 RU 11 (july 2020) and RU 12 (october 2020). This gives technical specialists an idea of the differences, and gives...
View ArticleWhat’s new with Oracle database 12.2.0.1.200714 versus 12.2.0.1.201020
This blogpost takes a look at the technical differences between Oracle database 12.2.0.1 PSU 200714 (july 2020) and PSU 201020 (october 2020). This gives technical specialists an idea of the...
View ArticleAbout the oracle database and compiling and linking.
This blogpost is about how the oracle database executable created or changed during installation and patching. I take linux for the examples, because that is the version that I am almost uniquely...
View ArticleWhat’s new with Oracle database 12.1.0.2.200714 versus 12.1.0.2.201020
This blogpost takes a look at the technical differences between Oracle database 12.1.0.2 PSU 200714 (july 2020) and PSU 201020 (october 2020). This gives technical specialists an idea of the...
View ArticleWhat’s new with Oracle database 11.2.0.4.200714 versus 11.2.0.4.201020
This blogpost takes a look at the technical differences between Oracle database 11.2.0.4 PSU 200714 (july 2020) and PSU 201020 (october 2020). This gives technical specialists an idea of the...
View ArticleOracle database reliable message waits
This blog is about the oracle database wait event ‘reliable message’. It should be noted that normally, this should not be a prominent wait, and if it does so, the most logical cause would be something...
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