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Is SQL database horizontally scalable?

Contents
  1. What is SQL horizontal scaling?
  2. Is MySQL horizontal scalable?
  3. Is SQL server scalable?
The main reason relational databases cannot scale horizontally is due to the flexibility of the query syntax. SQL allows you to add all sorts of conditions and filters on your data such that it's impossible for the database system to know which pieces of your data will be fetched until your query is executed. 6 янв. 2020 г.


What is SQL horizontal scaling?

Horizontal scaling refers to adding or removing databases in order to adjust capacity or overall performance, also called "scaling out". Sharding, in which data is partitioned across a collection of identically structured databases, is a common way to implement horizontal scaling.

Is MySQL horizontal scalable?

MySQL Cluster automatically shards (partitions) tables across nodes, enabling databases to scale horizontally on low cost, commodity hardware to serve read and write-intensive workloads, accessed both from SQL and directly via NoSQL APIs.

Is SQL server scalable?

SQL Server 2016 (13. x) contains scalability enhancements to the on-disk storage for memory-optimized tables.

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