ORA- Errors The following are some common ORA Errors, Root Causes, and how you can resolve them. Oracle Data Pump The datapump expdp fails with the ORA-39126, ORA-31642, ORA-06512, ORA-06550, ORA-00201 errors. ORA- Errors : ORA-01654: unable to extend index <SCHEMA_NAME>.<INDEX_NAME> by 128 in tablespace <TABLESPACE_NAME>