Use MySQL EXPLAIN for Query Optimization

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In this tutorial, we're going to:
- see why MySQL creates a query plan, before each query request.
- explore a series of examples, to show how the EXPLAIN output can be used, to identify where MySQL spends time on your query, and why.
- learn which are the important pieces of information, to look for in order to spot performance issues.

Видео Use MySQL EXPLAIN for Query Optimization канала High-Performance Programming