在SQLite中更改colum的自动增量

I am creating a table that at first keyID column is NOT in AUTO INCREMENT since i am going to insert a data that came from an old database where the keyID is already been set to each rows and it's not possible to be changed. So is it possible that i can set the column to AUTO INCREMENT after all the data has been moved? I've seen this:I am creating a table that at first keyID colum