Isolation Levels

Dirty reads

xvvsdfsdfsd

Non-re[eatable reades

Phantom reads

dasdasdasd

Lost updates

Deadlocks

pessimistc concurrency

optimistic concurrency

  1. odczyt nie blokuje odczytu
  2. odczyt blokuje zapis
  3. zapis blokuje odczyt
  4. zapis blokuje zapis

Jeden komentarz

comments user
A WordPress Commenter

Hi, this is a comment.
To get started with moderating, editing, and deleting comments, please visit the Comments screen in the dashboard.
Commenter avatars come from Gravatar.

Opublikuj komentarz