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Oracle® Database Reference
12c Release 1 (12.1)

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V$RESULT_CACHE_STATISTICS displays various Result Cache settings and usage statistics.

Column Datatype Description
ID NUMBER Statistic number
NAME VARCHAR2(128) Name of the statistic (see Table 8-6)
VALUE VARCHAR2(81) Value of the statistic
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


Statistic Name Description

Block Size (Bytes)

Size of each memory block

Block Count Maximum

Maximum number of memory blocks allowed

Block Count Current

Number of memory blocks currently allocated

Result Size Maximum (Blocks)

Maximum number of blocks allowed for a single result

Create Count Success

Number of cache results successfully created

Create Count Failure

Number of cache results that failed to create

Find Count

Number of cached results that were successfully found

Invalidation Count

Total number of invalidations

Delete Count Invalid

Number of invalid cached results deleted

Delete Count Valid

Number of valid cached results deleted

Hash Chain Length

Average length of items in the hash chain

Find Copy Count

Number of results copied directly out of the cache