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MySQL from a Developers Perspective
Posted by: Edwin Desouza
Date: July 30, 2020 10:54PM
• MySQL Transactions - the physical side. Looking at how MySQL InnoDB handles transactions on the physical media, enabling rollback and commit. Introduces a number of important concepts: The Undo Log, the Redo Log, the Doublewrite Buffer, and the corrosponding in memory structures, the Log Buffer and the InnoDB Buffer Pool, as well as the concept of a page.
• MySQL Commit Size and Speed. This article has code in Github, in mysql-commit-size/. We benchmark MySQL write speed as a function of number of rows written per commit.
• MySQL Connection Scoped State. Looking at things that are stateful and attached to a MySQL connection, and are lost on disconnect.
• MySQL Transactions - the logical view. This article introduces the concept of TRANSACTION ISOLATION LEVEL and how pushing things into the Undo Log, while a necessity to implement ROLLBACK for a Writer, enables features for a Reader.
• MySQL Transactions - writing data. This article has code in Github, in mysql-transactions-counter. We increment a counter in the database, with multiple concurrent writers, and see what happens.

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MySQL from a Developers Perspective
July 30, 2020 10:54PM

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