Select query using IN() and without any sorting

Question

My query

select * from product where productId in(25,36,40,1,50);

Result shows as follows

`productId   ProductName  Qty Pr         


        

Answer 1

If you want them to be randomly ordered, do:

select * from product where productId in(25,36,40,1,50) ORDER BY RAND()

The default ordering is probably due to the way the IDs are sorted in the index.

Answer 2

select * 
from product 
where productId in(25,36,40,1,50) 
order by find_in_set(productId, '25,36,40,1,50');

See this SQLFiddle