V$RMAN_COMPRESSION_ALGORITHM provides descriptions of supported compression algorithms. It is used by the RMAN client.
| Column | Datatype | Description |
|---|---|---|
ALGORITHM_ID |
NUMBER |
Algorithm ID |
ALGORITHM_NAME |
VARCHAR2(64) |
Name of the algorithm (for example, BZIP2 or ZLIB) |
ALGORITHM_DESCRIPTION |
VARCHAR2(64) |
Description of the algorithm |
ALGORITHM_COMPATIBILITY |
VARCHAR2(18) |
The required database compatibility level in order for the algorithm to work (for example, 11.0.0 for ZLIB) |
DATABASE_COMPATIBILITY |
VARCHAR2(18) |
Current database compatibility |
IS_VALID |
VARCHAR2(3) |
Whether or not the algorithm is valid with regard to the compatibility setting. Value is YES if ALGORITHM_COMPATIBILITY<=DATABASE_COMPATIBILITY. |
IS_DEFAULT |
VARCHAR2(3) |
Whether or not this is the default algorithm |