The following operations are resumable:

    * Queries

      SELECT statements that run out of temporary space (for sort areas) are candidates for resumable execution. When using OCI, the calls LNOCIStmtExecute() and LNOCIStmtFetch() are candidates.
    * DML

      INSERT, UPDATE, and DELETE statements are candidates. The interface used to execute them does not matter; it can be OCI, JSQL, PL/SQL, or another interface. Also, INSERT INTO ... SELECT from external tables can be resumable.
    * Import/Export

      As for SQL*Loader, a command line parameter controls whether statements are resumable after recoverable errors.
    * DDL

      The following statements are candidates for resumable execution:
          o CREATE TABLE ... AS SELECT
          o CREATE INDEX
          o ALTER INDEX ... REBUILD
          o ALTER TABLE ... MOVE PARTITION
          o ALTER TABLE ... SPLIT PARTITION
          o ALTER INDEX ... REBUILD PARTITION
          o ALTER INDEX ... SPLIT PARTITION
          o CREATE MATERIALIZED VIEW
          o CREATE MATERIALIZED VIEW LOG

resumable是什么意思，我不太能理解。