Question : Copy all distinct data from one table to another

I've got two tables, identical in terms of fields. I need to copy all data that's distinct on three fields (three fields make up the primary key). typeID, activity and requiredTypeID.

Any ideas?

Thanks,
Xtianu

Answer : Copy all distinct data from one table to another

INSERT INTO table2 (typeID, activity, requiredTypeID, col4, col5)
SELECT t1.typeID, t1.activity, t1.requiredTypeID, t1.col4, t1.col5
FROM table1 t1
LEFT OUTER JOIN table2 t2 ON t2.typeID = t1.typeID AND t2.activity = t1.activity AND t2.requiredTypeID = t1.requiredTypeID
WHERE t2.typeID IS NULL