Introduction to the request instance of query in mysql

This article mainly explains "the example introduction of query in mysql". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Now let the editor to take you to learn the "query in mysql request example introduction" bar!

1. The client sends queries to the server.

2. The server first checks the query cache.

If it hits the cache, it immediately returns the results stored in the cache. Or move on to the next stage.

3. SQL parsing.

Server-side preprocessing, and then the optimizer generates the corresponding execution plan.

4. According to the execution plan generated by the optimizer, MySQL calls the storage engine API to query.

5. Return the result to the client.

Example

1 FROM 2 ON 3 JOIN 4 WHERE 5 GROUP BY 6 HAVING 7 SELECT 8 DISTINCT 9 ORDER BY 10 LIMIT, I believe you have a better understanding of "query instance introduction in mysql", so you might as well do it in practice! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!