SQL question: Does the order of the WHERE clause make a difference?

Question

From a performance standpoint, does the order of my SQL WHERE statements make a difference?

For instance

SELECT ... FROM ...
WHERE a > 1
AND b <         


        

Answer 1

If it's from the same table, and the query is as simple as your example then, no it doesn't make a difference. As you get more complicated and link more tables, it can.