Question

I have about 23 000 records in my database and there are twenty duplicates from 4921 to 4940. I could easily delete the duplicates, but then my id column (auto-increment) value would be incorrect. So my question: is there a way to change the id column for records with id greater than 4940 without making thousands of queries?

EDIT: I realise the title is a little vague…. I’ll edit it now.

Answer 1

I don’t understand why you’d want to do this, or why it matters.

Or is this a “smart key” of some kind?

I would imagine that you could easily do it with:

UPDATE table
SET key=key-20
WHERE key>4940;