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Editing Index Advanced

Unusable
An unusable index must be rebuilt, or dropped and re-created, before it can be used.

Tablespace
The name of the tablespace to hold the index.

Compress
To enable key compression, which eliminates repeated occurrence of key column values and may substantially reduce storage.

Note: No compression for Bitmap Indexes.

Parallel
The creation of the index will be parallelized.

Reverse
To store the bytes of the index block in reverse order, excluding the rowid.

Logging

Logging
The creation of the index will be logged in the redo log file.

No Logging
The creation of the index will be not logged in the redo log file.

Visibility

Visible
Specify the index is visible to the optimizer.

Invisible
Specify the index is invisible to the optimizer.

Create / Rebuild Option

Online
To indicate that DML operations on the table will be allowed during creation of the index.

No Sort
To indicate to the database that the rows are already stored in the database in ascending order, so that Oracle Database does not have to sort the rows when creating the index.

Physical Attributes
Set the physical attributes of an index.