Home/ Questions/Q 3667492
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-19T02:00:27+00:00

I would like to add an autoincrementing integer field called uid to an existing

  • 0

I would like to add an autoincrementing integer field called uid to an existing table assoc, but it doesn’t look like I can do that unless it’s a primary key.

I have fields local_id and remote_id which are the existing primary key pair, and I do that so that I can INSERT OR IGNORE INTO assoc so that I don’t get duplicate primary keys, but if I have a pair of columns as a primary key, I can’t seem to use them as an update (see other SO question).

Could anyone suggest how to restructure the table (and implement that restructuring using ALTER TABLE) so that I can get the behavior I need:

  • a single autoincrementing key, so I can use that for UPDATEs
  • a pair of fields local_id and remote_id so that the pair (local_id, remote_id) remains unique in the table
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    In this case, you could drop the primary key on your existing columns, create the new primary key integer autoincrementing column, then create a UNIQUE index on the other two columns.

    • 0