I store some JSON in my database. However, I chang...

# room

[kotlinforandroid]

I store some JSON in my database. However, I changed the JSON representation. How can I migrate existing entries to the new format? I know how to generally do migrations. But I am not entirely sure how I can fetch the current entries, transform them and add them back to the database. Do I have to use raw SQL to fetch the entries or can I rely on older Room Daos during migration?