update query needed?

[Guest]

Hello

I inherited a large db that tracks contacts, among other things. There are
two tables with related fields, and I need to update one field based on the
data in the other (this field has never been updated apparently -- the db is
still new). The fields OrgAffil# = OrgID, and Employer = Organization.

tblCONTACTS tblORGANIZATIONS
OrgAffil# OrgID
Employer Organization

I need to fill in the OrgAffil# with the OrgID number, based on their
Employer given in the CONTACTS table (contains 2400 records). Is an update
query the best way to do this? Still pretty new to Access!

Thanks in advance!

 

[Guest]

I forgot to mention. OrgID is the PK in the Organization table, and OrgAffil#
is linked as an FK.