Question : Appending to table with primary key vfp

Hi:
I want to be able to append new records to an existing table.
However, I do not want to duplicate any append so have set a primary key in the existing table.
FoxPro does not (I believe) allow append of all but duplicated records - it stops the append.
How can I either write a query that deletes those records common to both tables or force an append, discarding common records?
Thanks!!

Answer : Appending to table with primary key vfp

insert into table1 select * from table2 where PrimaryKeyField not in (select PrimaryKeyField from table1)