MI-L I need an SQL Expert for comparing two points

[Brancato, Frank]

Hello,
 
I am not that proficient with SQL Select syntax.  I am in desperate need of
a Query to compare two tables points and find the closest match based on
distance.
 
Basically I have two tables: Points1.tab & Points2.tab.  I want to populate
an empty column in Points2 table with data from Points1 that is as close as
possible in Distance.
 
Points1                                                 Points2
LON  LAT  Freq                                     LON  LAT  Empty column to
Populate with Freq
 
 
Thanks in advance
Frank