Oracle9i Database Reference
Release 1 (9.0.1)

Part Number A90190-02
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Dynamic Performance (V$) Views, 170 of 211


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 


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