We have some unique indexes, which I just learned can't be made to be unusable. This page was last edited on 1 December 2017, at 15:44. Home » Software » Databases » ORA-01502 Oracle Index in Unusable State.
Answered by: Tom Kyte - Last updated: March 19, 2006 - 2:15 pm UTC, Reviewer: Kamal Kishore from New Jersey, USA, Reviewer: Arun Gupta from Harrisburg, PA USA, Reviewer: Logan Palanisamy from Santa Clara, CA USA. 2 comments. You May Also Interested In:
My test and production hardware is different. ORA-01502: index ‘string.string’ or partition of such index is in unusable state. Pauline,Tom had a note on his front page which said OTN has moved all the links and i right now i cannot do anything about that, didn't you read that.
alter session set skip_unusable_indexes = true; Also see: skip_unusable_indexes tips, Oracle disable index tips : Get the Complete Oracle SQL Tuning Information The landmark book "Advanced Oracle SQL Tuning The Definitive Reference" is filled with valuable information on … Windows 10 Anniversary Update (Version 1607 - Build 14393), Windows 10 Creators Update (Version 1703 - Build 15063), Drop the specified index and/or recreate the index. If it is, please let us know via a Review, http://docs.oracle.com/cd/B10501_01/server.920/a96540/statements_22a.htm#2182515, http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96540/statements_22a.htm#2182515, http://otn.oracle.com/documentation/index.html, http://docs.oracle.com/docs/cd/B10501_01/server.920/a96540/toc.htm, http://docs.oracle.com/docs/cd/B10501_01/server.920/a96540/statements_22a.htm#2182515. Share and learn SQL and PL/SQL; free access to the latest version of Oracle Database! Expertise through exercise! alter index idx_obj unusable / insert into t values (-1) / ORA-01502: index 'IDX_OBJ' or partition of such index is in unusable state alter session set skip_unusable_indexes=true / insert into t values (-1) / 1 row created.-- end attempt 2 **** Regards Sergey from Kharkov, Ukraine.
We use cookies to ensure that we give you the best experience on our website. ALTER INDEX indexname REBUILD; ALTER INDEX indexname REBUILD PARTITION partitonname; will make the Index or Partition USABLE again. The error indicates 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. A direct path load against a table or partition will also leave its indexes unusable. The problem usually happens when using the Direct Path for the SQL*Loader, Direct Load or DDL operations. SQL> alter index EMP_NO_UNQ_IND1 unusable; Index altered. And of course, keep up to date with AskTOM via the official twitter account. If you continue to use this site we will assume that you are happy with it.
How would you recommend we proceed in a data warehouse environment, where we have big nightly loads? It seems we will havee to drop & recreate them. Test system is a dual CPU machine and prod is 8 CPU. Invalid indexes can be checked with a SELECT * from USER_INDEXES WHERE STATUS = ‘INVALID’; SQL statement. Classes, workouts and quizzes on Oracle Database technologies. Oracle11g: Zero Sized Unusable Indexes (Zeroes) February 25, 2011 Posted by Richard Foote in 11g, 11g New features, Oracle Indexes, Unusable Indexes. Also see: skip_unusable_indexes tips.
You can: Generally, the following SQL manipulation language will be able to rebuild the unusable index: Enter your email address to subscribe to this blog and receive notifications of new posts by email. This requires enough temporary space to build all indexes of the table. Queries and other operations against a table with unusable indexes will generate errors: The following SQL commands can be used to detect unusable indexes: The following SQL will print out a list of alter commands that can be executed to fix unusable indexes: or if you prefer via single PLSQL anonymous block: https://www.orafaq.com/wiki/index.php?title=Unusable_indexes&oldid=17618. Oracle indexes can go into a UNUSABLE state after maintenance operation on the table or if the index is marked as 'unusable' with an ALTER INDEX command. A direct path load against a table or partition will also leave its indexes unusable.
Queries and other operations against a table with unusable indexes …
Connor and Chris don't just spend all day on AskTOM. If there is no enough space in TEMP tablespace, all rows will still be loaded and imported, but the indices are left with STATUS = ‘INVALID’. Or if video is more your thing, check out Connor's latest video and Chris's latest video from their Youtube channels. Previous Next. When I use Unusable, it works, but I am not able to insert any data after I make index unusable. Copyright 2005 - 2018 Tech Journey | All Rights Reserved |, Oracle ORA-14074 Create or Add New Partition Fails Error, MySQL Error 1170 (42000): BLOB/TEXT Column Used in…, Create, Add or Split Oracle Database Partition Fails…, ORA-25153 Temporary Tablespace is Empty Error in Oracle, Oracle ORA-01658 Unable to Create INITIAL Extent for…, How to Remove and Drop Datafiles from Tablespace in…, Duplicate, Copy or Backup Tables in MySQL, MariaDB,…. Applies to: SQL Server (all supported versions) Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Parallel Data Warehouse Modifies an existing table or view index (rowstore, columnstore, or XML) by disabling, rebuilding, or reorganizing the index; or by setting options on the index. An Index can be marked Unusable when you want to do a bulk insert into the table but do not want to add each entry individually to the index, but would rather rebuild the index at the end. ALTER INDEX (Transact-SQL) 08/21/2019; 45 minutes to read +19; In this article. They don't have same RAM either, so it'll be like comparing "apple Vs orange" in your terms ;), But there must be some way by which I can, Ok, I contacted metalink support on this and here, Is this answer out of date? W. hen trying to perform query on Oracle tables with select SQL statement, Oracle returns the following error: ORA-01502: index ‘string.string’ or partition of such index is in unusable state ... ALTER INDEX index_name REBUILD. Solution to this error is simple. Oracle indexes can go into a UNUSABLE state after maintenance operation on the table or if the index is marked as 'unusable' with an ALTER INDEX command. SQL> alter index my_fbi disable You can mark an index as unusable with this command: SQL > alter index my_nonfbi_index unusable; SQL> alter session set skip_unusable_indexes = true (BEWARE: Marking an index as unusable will prevent any DML against the base table!) Following on from my previous discussion on “Create On Demand” segments, Oracle 11g R2 has also introduced storage saving initiatives in relation to useable indexes. You can also catch regular content via Connor's blog and Chris's blog.
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