>I have a table in my Database that just relates to other Parent tables on a one-to-one basis.
>
>I suggested we have a PK of it's own because it doens't have one, but my Analyst said we don't need one because it doesn't have any child tables.
>
>Can I have some views/preferences on this?
>I prefer to always have a PK no matter what?
>

ALL tables need a primary key.

If it's a one to one with another table (it's fields could logically be placed in the other table), then I see no problem with the tables sharing a PK. In other words the primary key for one table would be duplicated in the other. In this sense, the PK is really a foreign key to the main table, but since it's one to one, it's unique enough to use as the PK.