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Oracle® Database Reference
12c Release 1 (12.1)

E17615-23
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PDF · Mobi · ePub

V$SESS_IO

V$SESS_IO displays I/O statistics for each user session.

Column Datatype Description
SID NUMBER Session identifier
BLOCK_GETS NUMBER Block gets for this session
CONSISTENT_GETS NUMBER Consistent gets for this session
PHYSICAL_READS NUMBER Physical reads for this session
BLOCK_CHANGES NUMBER Block changes for this session
CONSISTENT_CHANGES NUMBER Consistent changes for this session
OPTIMIZED_PHYSICAL_READS NUMBER Number of physical reads from Database Smart Flash Cache for this session
CON_ID NUMBER The ID of the container to which the data pertains. Possible values include:
  • 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

  • 1: This value is used for rows containing data that pertain to only the root

  • n: Where n is the applicable container ID for the rows containing data