SELECT * FROM external_db WHERE order_id NOT IN internal_db
Posted: Thu Dec 20, 2007 11:03 am
I need to import orders from an external database routinely. Every time somebody clicks "Synchronize DBs" I want to grab all order_ids that I don't already have? How should I go about this? It seems like an easy task... my first instinct was to just select all ids from my db and perform this query:
I'm just wondering if there isn't a better way. Thanks! 
Code: Select all
SELECT * FROM external_db WHERE order_id NOT IN (@internal_ids)