sql order of execution query

1SQL order of execution defines the
2execution order of clauses.
3
4-Select
5It starts execution with 
6-from  (Choose and join tables to get base data)
7after from
8-where ( filters base data )
9-group by (Aggregates base data)
10-having (filters aggregated data)
11-select (returns final data)
12-order by (sorts the final data)
13-limit (limits the returned data to a row count)
14
15Only select and from are mandatory