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Snippet Name: INDEXES: Alter Index Parallel

Description: Use the PARALLEL clause to change the default degree of parallelism for queries and DML on the index.


- You cannot specify this clause for an index on a temporary table.

The syntax of the parallel_clause supersedes syntax appearing in earlier releases of Oracle. Superseded syntax is still supported for backward compatibility but may result in slightly different behavior from that documented.

Also see:
» INDEXES: View table indexes
» INDEXES: Analyze Index
» INDEXES: Block Dump
» INDEXES: Rebuild Reverse
» INDEXES: ENABLE (function-based index)
» INDEXES: DISABLE (function-based index)
» INDEXES: Alter Index Deallocate Unused
» INDEXES: Alter Index Allocate Extent
» INDEXES: Virtual / NoSegment
» INDEXES: Reverse Key Indexes
» INDEXES: Bitmap Join Indexes
» INDEXES: Bitmap Indexes
» INDEXES: Unique indexes
» INDEXES: Parallel Index
» INDEXES: Compute Statistics
» INDEXES: Function-Based Index
» INDEXES: Alter index
» INDEXES: Single Column Non-unique
» INDEXES: Index Usage Notes
» Compressed Indexes
» Create INDEX

Comment: (none)

Language: PL/SQL
Highlight Mode: PLSQL
Last Modified: March 11th, 2009

-- syntax:
ALTER INDEX <index_name> PARALLEL <integer>;
-- example: 
SELECT index_name, degree
FROM user_indexes;
ALTER INDEX pl_idx_sales_us PARALLEL 3;
SELECT index_name, degree
FROM user_indexes;

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