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 blog.dancrisan.com
Intro to Database Systems - Part 1 : A quick intro to db
| | baransel.dev
Introduction to SQL | Baransel Arslan
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| | Discover the basics of SQL
| | timilearning.com
Chapter 2 - Data Models and Query Languages
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| | My notes from the second chapter of Martin Kleppmann's book: Designing Data Intensive Applications.
| | johnjr.dev
Why Is Atomicity Not Enough? -
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| | When we study transactions in relational databases, one of the first things we learn are the guarantees that a transaction must provide. ACID(Atomicity, Consistency, Isolation, Durability) are the properties that we desire. Here, I will discuss the Isolation level in more detail and show that atomicity alone is not enough when handling concurrency. One classic example of the importance of atomicity is moving money between accounts. So, imagine that we have two accounts and we would like to transfer the total amount from one account to another one. In a relational database, what we need to do is three steps:
| | cleverheap.com
About transaction isolation levels - CleverHeap
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| Vast of the today's applications leverage on some type of a database that provides ACID guarantees with transactions. It is important to know the differences between different isolation levels to facilitate the choice when applying them...