Use MySQL EXPLAIN for Query Optimization

Описание к видео 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.

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