Which performs first WHERE clause or JOIN clause

Question

Which clause performs first in a SELECT statement?

I have a doubt in select query on this basis.

consider the below example

Answer 1

Logical order of query processing phases is:

1. FROM - Including JOINs
2. WHERE
3. GROUP BY
4. HAVING
5. SELECT
6. ORDER BY

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You can have as many as conditions even on your JOINs or WHERE clauses. Like:

Select * from #temp A 
INNER JOIN #temp B ON A.id = B.id AND .... AND ... 
INNER JOIN #temp C ON B.id = C.id AND .... AND ...
Where A.Name = 'Acb'
AND B.Name = C.Name
AND ....