Hi -
I have table ‘Customer’.
This table has related 1-to-1 child table as ‘MembershipCard’.
‘MembershipCard’ has indexed unique column as ‘Id’.
Now, if I do find on ‘Customer’ table with where clause as - MembershipCard.Id = ‘xyz’ - will this result into a full table scan on ‘Customer’ table ?
Is there any way to optimize the same ?
Thanks.