Mysql database easy to learn 07 - select statement writing order and execution order

1、select Sentence writing order

Clause	explain
select	Column or expression to return
from	A table from which to retrieve data
where	Row level filtering
group by	Group description
having	Group level filtering
order by	Output sort order

select —> from —> where —> group by —> having —> order by

2、select Statement execution order

from —> where —> group by —> having —> select —> order by —> limit