DELETE for NoPI Tables
DELETE is supported for NoPI tables.
DELETE has the following rules and restrictions for NoPI tables:
A constrained DELETE request must use a full-table scan on a NoPI table unless the
table has a secondary, join, or hash index and the Optimizer selects an access path
that uses the index. However, column-partition elimination and row-partition elimination
may result in an operation that does not require a full-table scan.
To be eligible for fastpath delete processing, a DELETE ALL or unconstrained DELETE
request on a NoPI table must conform to the rules described in “Positioning Requirements” on page 325. Deferred deletions for entire row partitions that are deleted reclaims space for
any logically deleted data in that row partition.
For more information about NoPI tables, see Database Design.