Oracle Message ORA-22924 - snapshot too old

ERRORsnapshot too old
CAUSEThe version of the LOB value needed for the consistent read was already overwritten by another writer.
ACTIONUse a larger version pool.

1021454Oracle Segment Shrinking may cause LOB corrupt data
983230LOB corruption for NOCACHE LOBs in ASSM (ORA-1555/ORA-22924)
3807Error messages regarding rollback and undo segments
500340FAQ: LOBS