hi
in my databse i have 15 fields i want to select fileds not null like
full name, address one, address two, keycode, delivery address sample and also like to select 3 records of same keycode based on same key code ---and put an "X" on selcted three records of same keycode.

fullName AddressOne AddressTwo Keycode DeliveryAddres sample
a 1 2 000 123
a 1 2 222 123
a 1 2 111 123
a 1 2 111 123
a 1 2 000 123
a 1 2 222 123
a 1 2 333 123
a 2 2 111 123
b 1 2 123 123
b 1 2 456 123
as 2 2 333 123
a 1 2 750 123
a 1 2 555 123
a 1 2 555 123
a 1 2 555 123