Oracle 视图 V$FALSE_PING 官方解释，作用，如何使用详细说明
本站中文解释
V$FALSE_PING是Oracle数据库中实例可视图，用于跟踪网上访问实例失败的次数。
用途：
1. V$FALSE_PING 视图可以监控实例访问失败的次数，帮助DBA进行实例故障排查和问题排查。
使用方法：
使用这个视图是非常简单的。我们可以使用以下SQL 语句来查看V$FALSE_PING 视图中实例的连接失败次数：
SELECT * FROM V$FALSE_PING;
由于V$FALSE_PING是一个动态性视图，可以在这个视图中找到数据库实例的最新的连接失败次数。
官方英文解释
V$FALSE_PING is deprecated. The information that was provided in this view is now provided in the V$INSTANCE_CACHE_TRANSFER and V$SEGMENT_STATISTICS views.
| Column | Datatype | Description |
|---|---|---|
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Data file identifier number (to find the file name, query |
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Block number |
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Status of the block:
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Number of PCM lock conversions from Exclusive mode due to contention with another instance. This column is obsolete and maintained for backward compatibility. |
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Number of times the block had to be reread from the cache because another instance has forced it out of this instance’s cache by requesting the lock on the block in exclusive mode |
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Number of times GCS had to write this block to cache 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 nonpartitioned objects |
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Type of database object |
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Owner number |
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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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Name of the lock that contains the PCM lock that is covering the buffer |
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Lock element class |
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The ID of the container to which the data pertains. Possible values include:
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See Also:
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“V$INSTANCE_CACHE_TRANSFER”
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“V$SEGMENT_STATISTICS”
