ORA-01502 index or partition of such index is in unusable state | Rebuild & Drop Index

I got ” ORA-01502 index or partition of such index is in usable state ” error in Oracle database.

 

 

ORA-01502 index or partition of such index is in usable state

 

Details of error are as follows.

ORA-01502: index "string.string" or partition of such index is in unusable state

Cause: An attempt has been made to access an index or index partition that has been marked unusable by a direct load or by a DDL operation

Action: DROP the specified index, or REBUILD the specified index, or REBUILD the unusable index partition
SQL>

 

 

The ORA-01438 error is related with the unusable state of Index.

If the related index(es) are unusable, then you can drop these indexes or rebuild indexes as follows.

 

Drop Index Oracle

You can drop the unusable index as follows.

DROP INDEX SCHEMA_NAME.INDEX_NAME;

 

 

 

ORA-01502

To solve The ORA-01502 error, You should rebuild index as follows.

 

Rebuild Index Oracle

ALTER INDEX SCHEMA_NAME.INDEX_NAME REBUILD;

 

If you want to rebuild all unusable indexes, you can use the following script.

SELECT 'ALTER INDEX '||OWNER||'.'||INDEX_NAME||' REBUILD;'
FROM DBA_INDEXES
WHERE STATUS = 'UNUSABLE';

 

If you want to rebuild index fastly, then you can use the parallel option as follows.

ALTER INDEX SCHEMA_NAME.INDEX_NAME REBUILD PARALLEL 32;

 

 

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About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience.I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource.I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks.I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients.If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress [email protected].-                                                                                                                                                                                                                                                 -Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  [email protected] a mail atabilirsiniz.

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