What Are Indexes

@inproceedings{Brumm2019WhatAI,
  title={What Are Indexes},
  author={Ben Brumm},
  year={2019}
}
Indexes are a feature that’s worth knowing about in SQL. They are useful for making your queries perform better, and as you gain more experience in SQL, you’ll need to know how to create them and why they are needed. 

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