ORA-01555 And Other Errors while Exporting Table With LOBs, How To Detect Lob Corruption.
(Doc ID 452341.1)
Last updated on JULY 05, 2023
Applies to:
Oracle Database - Enterprise Edition - Version 9.2.0.1 and laterOracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Symptoms
When attempting to export tables that contain lobs, the following errors occur:
- using DataPump export, EXPDP:
Processing object type DATABASE_EXPORT/SCHEMA/POST_SCHEMA/PROCACT_SCHEMA
ORA-31693: Table data object "OWNER"."TABLEABC" failed to load/unload and is being
skipped due to error:
ORA-29913: error in executing ODCIEXTTABLEPOPULATE callout
ORA-01555: snapshot too old: rollback segment number with name "" too small
ORA-22924: snapshot too old
ORA-31693: Table data object "OWNER"."TABLEABC" failed to load/unload and is being
skipped due to error:
ORA-29913: error in executing ODCIEXTTABLEPOPULATE callout
ORA-01555: snapshot too old: rollback segment number with name "" too small
ORA-22924: snapshot too old
- using original export, EXP:
. . exporting table TABLEABC
EXP-00056: ORACLE error 1555 encountered
ORA-01555: snapshot too old: rollback segment number with name "" too small
ORA-22924: snapshot too old
EXP-00056: ORACLE error 1555 encountered
ORA-01555: snapshot too old: rollback segment number with name "" too small
ORA-22924: snapshot too old
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |