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www.ahmed-ibrahim.com | ||
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blog.dancrisan.com
In real life, users access a database concurrently. Database access is done through transactions. What is a transaction? a unit of work that has to be treated as "a whole" it has to happen in full or not at all A real life example of a transaction... | Dan Crisan | Techie, Blogger, Diversity Advocate and A Little Bit More . This is my technical blog (: |
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architecturenotes.co
How Relational Databases Work. This post talks about how indexes and transactions work on the inside of relational databases. |
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johnjr.dev
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: |
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shekhargulati.com
This week I was talking to a developer about how to think about data models supported by different databases. One thing that I have learnt in my 15 years of building web applications is that data models play an important role in the success of any software application. Data model provides an abstract model to... |
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