Keyset-driven cursors allow updates to selected records in the result set. Keyset-driven cursors require the target tables to include unique primary keys. If an attempt is made to update or delete records in a result set, and the corresponding records in the target table have been deleted, an error may be returned, depending on the transaction isolation level.

Keyset-driven cursors can be used within a read-only context, but do not perform as well as static cursors.