Oracle 视图 V$RMAN_COMPRESSION_ALGORITHM 官方解释，作用，如何使用详细说明
本站中文解释
(只读)用途：报告有关当前可用和禁用的RMAN压缩算法的信息。
Oracle视图V$RMAN_COMPRESSION_ALGORITHM是一个只读视图，提供了RMAN可用和已禁用的压缩算法的信息。可用于优化RMAN备份性能，节省存储空间。
使用此视图时，可以使用诸如ALGORITHM_NAME，ALGORITHM_DESC，可用性等列收集有关压缩算法的信息。 ALGORITHM_NAME列显示已经可用的算法的名称，ALGORITHM_DESC列提供有关可以使用的算法的描述，而AVAILABILITY列显示算法是启用还是禁用。
官方英文解释
V$RMAN_COMPRESSION_ALGORITHM provides descriptions of supported compression algorithms. It is used by the RMAN client.
| Column | Datatype | Description |
|---|---|---|
|
| Algorithm ID |
|
| Name of the algorithm (for example, |
|
| First Oracle Database release when this compression algorithm was available |
|
| Last Oracle Database release that supported using this compression algorithm to create new backups. Existing backups can always be restored, even if they use a deprecated compression algorithm. |
|
| Description of the algorithm |
|
| Required database compatibility level for the algorithm (for example, 11.2.0 for |
|
| Indicates whether the algorithm is valid with regard to the compatibility setting ( |
|
| Indicates whether the algorithm requires the Advanced Compression Option ( |
|
| Indicates whether the algorithm is the default compression algorithm that RMAN uses to create compressed backup sets ( |
|
| The ID of the container to which the data pertains. Possible values include:
|