Question about locking

[Frank Millman <frank@xxxxxxxxxxxx>]

Hi all

Apologies if this is an FAQ, but I could not find the answer I was 
looking for.

I want to run two SELECTs, one immediately after the other.

I want to ensure that no other process updates the database in between 
the two.

What is the best way to achieve this?

Thanks

Frank Millman