V$RMAN_COMPRESSION_ALGORITHM

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

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