mySql copy rows into same table with key value changed (not overwriting existing)

Question

How do I copy a selection of rows from a mySql table and insert with just the key value changed. Can I do a select and insert in same query?

To be precise, what I wa

Answer 1

INSERT INTO your_table (ID, ISO3, TEXT) 
SELECT ID, 'JPN', TEXT
FROM your_table 
WHERE ID IN ( list_of_ id's )

If you want to change a value in one cell, just hard-type the value instead of selecting from table (like I did with 'JPN').