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Oracle® Database Reference
10g Release 2 (10.2)

Part Number B14237-02
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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
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
RELATIVE_FNO NUMBER Relative file number of the sort segment header