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Oracle9i Database Reference
Release 2 (9.2)

Part Number A96536-02
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V$SORT_SEGMENT

This view contains information about every sort segment in a given instance. The view is only updated when the tablespace is of the TEMPORARY type.

Column Datatype Description

TABLESPACE_NAME

VARCHAR2(31)

Name of tablespace

SEGMENT_FILE

NUMBER

File number of the first extent

SEGMENT_BLOCK

NUMBER

Block number of the first extent

EXTENT_SIZE

NUMBER

Extent size

CURRENT_USERS

NUMBER

Number of active users of the segment

TOTAL_EXTENTS

NUMBER

Total number of extents in the segment

TOTAL_BLOCKS

NUMBER

Total number of blocks in the segment

RELATIVE_FNO

NUMBER

Relative file number of the sort segment header

USED_EXTENTS

NUMBER

Extents allocated to active sorts

USED_BLOCKS

NUMBER

Blocks allocated to active sorts

FREE_EXTENTS

NUMBER

Extents not allocated to any sort

FREE_BLOCKS

NUMBER

Blocks not allocated to any sort

ADDED_EXTENTS

NUMBER

Number of extent allocations

EXTENT_HITS

NUMBER

Number of times an unused extent was found in the pool

FREED_EXTENTS

NUMBER

Number of deallocated extents

FREE_REQUESTS

NUMBER

Number of requests to deallocate

MAX_SIZE

NUMBER

Maximum number of extents ever used

MAX_BLOCKS

NUMBER

Maximum number of blocks ever used

MAX_USED_SIZE

NUMBER

Maximum number of extents used by all sorts

MAX_USED_BLOCKS

NUMBER

Maximum number of blocks used by all sorts

MAX_SORT_SIZE

NUMBER

Maximum number of extents used by an individual sort

MAX_SORT_BLOCKS

NUMBER

Maximum number of blocks used by an individual sort