Oracle8i Reference Release 2 (8.1.6) Part Number A76961-01 |
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Dynamic Performance (V$) Views, 104 of 179
This is an Oracle Parallel Server view. The V$PING
view is identical to the V$CACHE
view but only displays blocks that have been pinged at least once. This view contains information from the block header of each block in the SGA of the current instance as related to particular database objects.
Column | Datatype | Description |
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Datafile identifier number (to find filename, query "DBA_DATA_FILES" or "V$DBFILE") |
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Block number |
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Class number |
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Status of block: |
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Number of PCM lock conversions due to contention with another instance. This column is obsolete but is retained for historical compatibility |
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Number of times the block had to be reread from disk because another instance had forced it out of this instance's cache by requesting the PCM lock on the block in exclusive mode |
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Number of times DBWR had to write this block to disk because this instance had used the block and another instance had requested the lock on the block in a conflicting mode |
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Name of the database object containing the block |
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NULL for non-partitioned objects |
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Type of database object. See Table 3-1. |
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Owner number |
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The address of the lock element that contains the PCM lock that is covering the buffer. If more than one buffer has the same address, then these buffers are covered by the same PCM lock |
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The name of the lock that contains the PCM lock that is covering the buffer |
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