What is the priority of mysql query statements?

The execution order of sql and mysql, the internal mechanism is the same, the biggest difference is in the alias

mysql execution order

1, from

2, on

3, join

4, where

5, group by (start using the alias in select, and you can use it in subsequent statements )

6, avg, sum.....

7, having

8, select

9, distinct

10. Order by

Recommended tutorial:mysql video tutorial

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