Câu hỏi phỏng vấn NoSQL
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Explain BASE terminolog...

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BASE is an acronym used to describe the properties of certain NoSQL databases, often considered the opposite of the ACID properties found in traditional relational databases. BASE stands for Basically Available, Soft State, and Eventual Consistency. Here’s a detailed explanation of each term in the context of NoSQL:

  1. Basically Available:

    • This property ensures that the system is available most of the time. In the context of NoSQL databases, this means that the database can respond to queries even if some of the nodes in the system are down. The system guarantees availability by replicating data across multiple nodes, so if one node fails, others can still provide the data. This is in contrast to ACID-compliant systems, which might prioritize consistency over availability[6][7][11].
  2. Soft State:

    • Soft state indicates that the state of the system may change over time, even without new input. This is because NoSQL databases do not enforce immediate consistency. The data might be in a transient state and can change as it propagates through the system. This property allows NoSQL databases to be more flexible and scalable, as they do not need to lock data for consistency, which can be a bottleneck in distributed systems[6][7][11].
  3. Eventual Consistency:

    • Eventual consistency means that while the system does not guarantee immediate consistency, it ensures that, given enough time, all updates will propagate through the system, and all nodes will eventually reflect the same data. This is suitable for applications where immediate consistency is not critical, and the system can tolerate temporary inconsistencies. For e...
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