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Проверка на (не)вхождение строк через разные инструменты в PostgreSQL

Сравниваем использование IN , EXISTS и JOIN для нахождения вхождений и рассматриваем их планы выполнения для разных ситуаций. Найти вхождение (◕‿◕)

habr.com/ru/articles/878574/

ХабрПроверка на (не)вхождение строк через разные инструменты в PostgreSQLЯ думаю, что каждый, кто хоть немного работал с базами данных сталкивался с задачей выбрать из таблицы только те записи, атрибут которых содержится (или не содержится) в другой таблице. Совершенно...
#Exists#IN#JOIN

Dear Friends, :ablobcatpopcorn:

As we may surmise:
The
#multiverse or the one we know #exists. Even in thought, if nowhere else. In #Buddhist dharma, we say it like this: “Emptiness is form and form is #emptiness.” #Physicists explain the #beginning of emptiness across #space-time as being #eternally forced into a cat-A-list of bright glittering. #Schrödinger-like #pre-instances of [insert nothing of #current pre-absence]. #Bless. 🕊️

Equally
#fantastic events are #written into every #grain of #Truth, leading to the #continuum of #influence and #evolving #complexity. It is why nothing is lost and #everything #matters. Even nihilists have their #unique #opportunity of being in error correction. :gi:

It is why we can declare Peace on the world, rather than war and opposition. Love, devotion and surrender as the
#rainbowing worriers might sail into the sun setting ... ❤️

www.electronicspecifier.com/industries/aerospace-defence/schr-dinger-equation-appears-at-the-astronomical-scale-1

That's right. Move along. Nothing here for you, everything elsewhere. Where? Everywhere!
:ablobcatcoffee:

www.electronicspecifier.comSchrödinger Equation appears at the astronomical scale  Quantum mechanics is the branch of physics governing the sometimes-strange behaviour of the tiny particles that make up our universe. Equations describing the quantum world are generally confined to the subatomic realm—the mathematics relevant at very small scales is not relevant at larger scales, and vice versa.

Dear Friends of #Server #Space, the Last #Frontier, #Federation, #Section- 31 etc, :gi:

As we
#Borg may know: 🦞
-
#Schrödinger the #cat is missing and not missing ⚛️
- The
#Multiverse #exists mostly everywhere
- Just because it is
#true, does not mean it is #real

The reality we
#project is #fortunately not the only way in or out. Also we can be forced into alternatives or better yet, #develop #alternative situations to #inhabit our #betterment. :ablobcatgoogly:

en.wikipedia.org/wiki/Section_31_(Star_Trek)

en.wikipedia.orgSection 31 (Star Trek) - Wikipedia

"The whole “#scientists use big #words on purpose to be exclusive” is such a bunch of #antiintellectual #bullshit. Specific and concise #language #exists for a #reason; you need the right words to convey the right #meaning, and #explaining stuff right is a hugely important part of science. Cultures that live around loads of snow have loads of words to describe different types of snow; cultures that live in deserts have loads of words to describe different types of sand. Specifics matter, and they especially matter in science."

tumblr.com/anarchistfrogpostin

TumblrAnarchist-FrogpostingThe whole “scientists use big words on purpose to be exclusive” is such a bunch of anti-intellectual bullshit. Specific and concise language exists for a reason; you need the right words to convey th…

#Rails #ActiveRecord is very keen on binding variables. Perhaps too keen.

If you have a polymorphic association `batchable` then you get SQL like `batchable_type = $1`, but you'd need a lot of unique types for the benefits of bind variables to outweight to loss of accurate cardinality estimation, surely.

And implementing `#exists?` with a bind variable as `LIMIT $1` seems quirky.

Efforts to reform Karabakh Army remains top priority, president says

Arayik Harutyunyan, President of Nagorno Karabakh, said on Tuesday that the Artsakh (Karabakh) Defense Army will be reformed to effectively guarantee the security of its population.

During his visit to the Defense Ministry, Harutyunyan met with the high command staff of the army to discuss military reconstruction, defense capabilities, and strategies for improving social conditions of military personnel.

“We have a dignified and lasting peace agenda, but that also requires security guarantees. That is why the [Artsakh Army] exists, will remain, and become more efficient. As a result of the planned reforms, a professional army will be formed, where contract servicemen will play an important role,” the president said, adding that significant efforts will be focused on improving Artsakh’s security system in the near future.

Speaking about the improvement of the social and living conditions of military personnel, President Harutyunyan emphasized that with the active support of Armenia’s government, the housing problem for current and retired officers will be resolved by 2023. Additional work is expected to be done to provide social services to servicemen, and to the families of fallen and injured officers.

The post Efforts to reform Karabakh Army remains top priority, president says appeared first on CIVILNET.