UNION Vs MSR - response (15) by vasudev

Hi Dieter,
Thanks for the reply. This means that, Customer table is locked for access and order table is locked for read. 
Having one more doubt, if this is the case in the first question i mentioned both the customer and orders table are loacked for access, statement 2 is update to order table so it places the write lock. So the access lock is overwrittern by write lock. 
Please advise.